Paul L. Redfearn

Soil pH, Topography and Forest Vegetation in the Central Ozarks

In a detrended correspondence analysis (DCA) ordination, 81 forested sites in the southern Missouri Ozarks fell into three different groups. Groups I and II were upland, and Group III consisted of 17 bottomland stands with high importance of Platanus occidentalis. In Group I (34 upland stands), Quercus alba, Q. velutina, Q. rubra and Carya texana codominated in various combinations, but Q. velutina reached higher importance percentage (I.V.) at higher elevation above the streams and on more acid soils, whereas Q. alba was most important at lesser heights above the streams and on less acid soils. Pinus echinata and Q. stellata were concentrated at opposite ends of a DCA ordination of Group I, with Q. stellata I.V. highest on southern and western aspects and ridgetops and with P. echinata on various aspects. Quercus and Carya were reproducing well in all Group I stands and Acer saccharum in only a few. In Group 11 (30 upland stands generally with higher pH than Group I stands), a DCA ordination revealed a vegetational gradient correlated with aspect, with Juniperus virginiana stands on southern and western aspects at one end and stands with Tilia americana at the other end. Quercus muehlenbergii decreased in importance from the Juniperus end toward the Tilia end, whereas Acer saccharum increased over the same gradient. High abundance of Fraxinus americana and Ulmus rubra occurred where Acer saccharum was abundant. Quercus rubra, the only species important in both Group I and Group II, was abundant all across the Group II ordination, but was most important toward the Tilia end. Quercus spp. were not reproducing well in Group II stands, whereas Acer saccharum was, even in stands at the Juniperus end of the ordination. The differential reproduction of Quercus spp. vs. Acer saccharum on more acid vs. less acid to basic soils suggests that not only present composition but also potential (sapling layer) vegetation is related to soil pH.

Bryogeography of the Interior Highlands of North America: Taxa of Critical Importance

One hundred nine taxa critical to an understanding of the bryogeography of the In- terior Highlands ofNorth America are grouped according to their probable phytogeographic history. The taxa reinforce the concepts that the Interior Highlands have served as (1) a refugium for boreal, temperate and austral/tropical taxa of the Arcto- Tertiary Geoglora taxa during glaciation of the Pleistocene, (2) as a dispersal center for temperate and tropical taxa to the south and southwest and (3) as a route for the eastern dispersal of many xeric western and southwestern taxa during xeric periods of the Tertiary and Quaternary. Together with the Appalachian Mountains, the Interior Highlands of North America has served as refugium during glaciation of the Pleistocene for boreal, temperate and austral/tropical plants that were members of the holarctic Arcto-Tertiary Geo- flora (Sharp 1939; Crum 1952, 1972; Steyermark 1959; Iltis 1965). In the Ozarkian region (northern half of the Interior Highlands) there are a number of bryophytes more typical of the drier regions of

Guide to the Mosses of Colorado. Keys and Ecological Notes Based on Field and Herbarium Studies

Guide to the mosses of Colorado keys and ecological notes based on field and herbarium studies , Guide to the mosses of Colorado keys and ecological notes based on field and herbarium studies , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Bryophytes of the Interior Highlands XII. A New Species of Zygodon

Zygodon apiculatus from Missouri is described as new. The following species of Zygodon is described as new: Zygodon apiculatus sp. nov. (Fig. 1-9). Plantae parvulae, atrovirentes, erectae, dispersae ad corticem arborum inter alios muscos, ca. 1-4 mm altae, aliquantum radiculosae basi. Folia sicca erecta; humida, late patentia apicibus aliquantum recurvatis, congesta, carinata, 0.5-1.3 mm longa, 0.2-0.4 mm lata oblongolanceolata vel oblongo-ovata, acuta et paulo abrupte breviapiculata, cellulis apiculi terminis paulo elongatis, luteo-fuscis vel concoloris (siccis saepe hyalinis generali aspectu), non decurrentibus vel exigue, laevibus, marginibus simplicibus vel exigue sinuatis, ad apicem omnio vel irregulariter denticulatis; a tergo, costa conspicua et papillosa apicem versus, subpercurrens; cellulae superae virides, 6.5-12g, hexagonae, parietibus tenuibus, subtilius pleuripapillosae in superficiebus ambabas; cellulae inferiores aliquantum ampliores basin versus, subquadratae vel brevi-oblongae in paucis seriebus basi, laeves. Gemmae aggregatae et abundantes in foliorum axillis, subcylindratae usque ad fusiformes, compositae 3-4 (raro 5) cellularum uniseriatarum. Dioeciae, ut videtur, archegoniis praesentibus, foliis perichatialibus parum dissimilibus, nec vaginantibus. Sporangia ignota. Plants very small, dark green, erect, scattered among other corticolous mosses, 1-4 mm high, at the base somewhat radiculose. Leaves when dry, erect; when moist, spreading widely with somewhat recurved tips, crowded, keeled, 0.5-1.3 mm long, 0.2-0.4 mm wide, oblong-lanceolate or oblong-ovate, acute and rather abruptly shortapiculate; terminal cells of the apiculus little elongated, yellowish-brown or concolorous (when dry, often hyaline in general aspect), not to slightly decurrent, smooth; margins plain or slightly wavy, near the apex entire or irregularly denticulate; from the back, costa conspicuous and papillose toward the tip, ending well below the apex; upper cells green, 6.5-12 ?t, hexagonal, thin-walled, rather delicately pleuripapillose on both surfaces; lower cells somewhat larger near the base, subquadrate or short-oblong in a few rows at base, smooth. Gemmae crowded and abundant in the leaf axils, subcylincric to fusiform, composed of 3-4 (rarely 5) uniserrate cells. Apparently dioicous, archegonia present, perichaetal leaves little differentiated, not sheathing. Sporophytes unknown. MISSOURI. DALLAS CO.: Bark of oak, among mats of Homalotheciella subcapillata, along Mill Creek, Sect. 8, R. 18 W, T. 36 N, ca. 1 mi. W of Celt, 900 ft., Redfearn 12271, 26 June 1963 (holotype-NY, isotype-sMs). LA CLEDE CO.: Trunk of Quercus stellata, NE slope, 3 mi. S of Nebo, NW 1/4 sect. 20, R. 12 W, T. 33 N, Bowers 17-16, 22 July 1966 (SMS). Dr. Howard Crum, to whom I am indebted for suggesting the distinctness of this species, points out that it differs from other American species in its small size, its short, scarcely decurrent leaves that terminate in a short apiculus ending in a rather short and generally concolorous cell, the minute denticulations often present near the 1 This work was supported by National Science Foundation grants GB-4095 and GY-210. I thank Wanda M. Gorczynski for help in preparing the Latin description. 2 Department of Science (Biology), Southwest Missouri State College, Springfield, Missouri 65802. This content downloaded from 157.55.39.17 on Wed, 31 Aug 2016 04:49:43 UTC All use subject to http://about.jstor.org/terms

Lescuraea morrisonensis fo. sichuanensis (Musci: Leskeaceae), a new form from Sichuan, China

Lescuraea morrisonensis fo. sichuanensis is described from Sichuan, China. During a bryological expedition to Sichuan, China, P. L. Redfearn, Bruce Allen, Pu Fating, and P.-C. Wu collected a specimen of Lescuraea morrisonensis (Tak.) Nog. (Redfearn 34969) that had distinctly pinnately-branched paraphyllia (Fig. 1) in contrast to the furcately branched paraphyllia present in the isotype of its basionym, Pseudopleuropus morrisonensis (Noguchi 6357), and illustrated by Takaki (1955). We therefore treat this collection with pinnately-branched paraphyllia as a new form of L. morrisonensis. LESCURAEA MORRISONENSIS fo. SICHUANENSIS Wang, Hu & Redfearn fo. nov. (FIG. 1) Paraphyllia numerosa, ramiformis filamentus vel foliaceus. Plants similar to the typical species except paraphyllia are linear and pinnately branched. TYPE: CHINA. SICHUAN PROVINCE. LI CO.: At base of fir, in fir forest with dense understory of Rhododendron, adjacent to an old logging slide, 4,270-4,300 m, Redfearn 34969 (holotype, HSNU; isotypes, FH, MO, NY, SMS). ACKNOWLEDGMENTS We thank the National Geographic Society for the financial support that allowed Redfearn and Allen to travel to China, and the Academia Sinica (Institute of Botany, Beijing, and Institute of Biology, Chengdu) for financial support for the collecting expedition to Sichuan. Thanks are also due to Dr. P.-C. Wu (Beijing) and Dr. Pu Fating for the careful arrangements they made for our work in China and for participation in the fieldwork. FIGURE 1. Lescuraea morrisonensis fo. sichuanensis Wang, Hu & Redfearn fo. nov., paraphyllia, x 480. Scale bar = 0.08 mm. From Redfearn 34969. LITERATURE CITED TAKAKI, N. 1955. Researches on the Brachytheciaceae of Japan and its adjacent areas (1). Journal of the Hattori Botanical Laboratory 14: 1-38. 0007-2745/93/640

Orthothecium hyalopiliferum (Musci: Hypnaceae), a New Species from Sichuan, China

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Bryophytes of the interior highlands of North America. XVIII: Additions to the flora

Orthothecium hyalopiliferum sp. nov. is described from Sichuan, China. On a recent collecting expedition to Sichuan Province, we encountered a puzzling pleurocarpous moss that was difficult to place. The slender plants occurred in the crevices of limestone boulders and vertical cliff faces in silky greenish-yellow mats. A noteworthy aspect of this new species is the absence of positive character states: stem central strand ab- sent, pseudoparaphyllia absent, leaves ecostate (or with a very short double costa), and alar cells not or weakly differentiated. Other distinctive features of this moss include its narrowly (nearly linear) lan- ceolate, plicate leaves having long slender twisted apices that end in a single row of 3-5 cells, its entire narrowly recurved leaf margins, and its narrowly rhomboidal incrassate porose leaf cells. moss are also features of the genus Orthothecium, we do not hesitate to place it in this genus. Our moss is clearly distinguished from all other species in the genus by its slender silky appearance, linear to narrowly lanceolate leaves, and long, hyaline fi- liform leaf apices composed of a single row of 3-5 cells. We therefore describe it as a new species of Orthothecium.

Ronald Arling Pursell: Je ne regrette rien

Forty-one taxa are reported as new state records from Arkansas, Illinois, Missouri, and Oklahoma. The phytogeographic significance of new records from the Boston Mountains in Arkansas is discussed. In 1965 my studies on the bryophytes of southwest Missouri were expanded to include the entire Interior Highlands of North America. Resulting field studies in the Ozarks of southern Illinois, the St. Francois Mountains of eastern Missouri, and the Boston and Ouachita Mountains of Arkansas and Oklahoma have provided a number of new state records for Arkansas, Illinois, Missouri, and Oklahoma. Many of these records are of phytogeographic significance. Of particular interest is the group of new records from Madison County in northwestern Arkansas, where in deep sandstone ravines containing relic mixed mesophytic forests of beech, sweet-gum, and umbrella magnolia, Bazzania trilobata, Bryoxiphium norvegicum, Campylostelium saxicolum, Hookeria acutifolia, and Rhytiadelphus triquetrus were found. The significance of these taxa in this partciular area is heightened by the fact that it is also one of the two known localities in Arkansas for both the filmy fern, Trichomanes boschianum (Clark 1962) and Lycopodium lucidulum (Bowers & Redfearn 1966). Furthermore, in similar habitats in the Boston Mountains, other significant taxa have been discovered such as Brothera leana, Neckera complanata, Syrrhopodon texanus, Rhabdoweisia denticulata, and Thamnobryum alleghaniense. Finally, a second station for Bryoxiphium norvegicum has been located in Newton County where Frenchs shooting-star, Dodecatheon frenchii, heretofore considered an endemic of the southern Illinois Ozarks, was also discovered. The presence of the forementioned taxa in the Boston Mountains of northwest Arkansas is certainly additional evidence in support of the theory that the flora of the Interior Highlands was derived from the Arctotertiary Geoflora and has served as an important refuge and center of distribution of temperate plants during the Tertiary and the Pleistocene (Crum 1952). Voucher specimens for the taxa reported below have been deposited in the herbarium of Southwest Missouri State College and/or other herbaria as indicated. Unless otherwise noted, all collection

Three Mosses New to Mainland China

Ronald Arling Pursell died on 17 March 2014 in St. Louis, Missouri, age 83, after a short but intense struggle from complications brought on by an opportunistic bacterial [Pseudomonas aeruginosa (Schroter) Migula] infection. He was weakened at the time of this infection and much immunosuppressed due to a lengthy battle with Chronic Lymphocytic Leukemia. Ron Pursell was born on 7 December 1930 in the village of Upper Black Eddy, Pennsylvania. Upper Black Eddy is in extreme northern Bucks County (established by William Penn in 1682), and despite its proximity to Philadelphia (45 miles north) and New York City (58 miles west) it has always been sparsely populated. There are innumerable Pursells in and around Upper Black Eddy and all apparently trace their ancestory back to John Pursell, one of the area’s three original settlers who immigrated from Ireland around 1750. The Upper Black Eddy Pursells pronounce their name in the English manner, “persal,” but Americans invariably say “per-sel.” Ron hardly ever corrected this mispronouncation and when asked why, he said having gone so far through life with it mispronounced it didn’t bother him anymore. However, he did add that some Upper Black Eddy Pursells had abandoned “per-sal” for “per-sel.” From the first through eighth grades Ron was educated in a two-room schoolhouse just across the street from his house in Upper Black Eddy. To continue his education Ron traveled 5 miles and crossed the Delaware River to attend high school in Frenchtown, New Jersey, from which he graduated in 1948. Ron was early on marked as a different individual from most other Upper Black Eddy students. He came from a large, working-class family, none of whom had attended college. Nevertheless, by the seventh grade he was determined to enroll and graduate from college. While in high school Ron discovered the Texaco-sponsored Saturday radio broadcasts of the Metropolitan Opera, and although no one in his family listened to opera he became a life-long opera fan. However, his musical interests were broad and curiously eclectic, ranging from classical to country and western. During his high school years Ron developed an interest in plant biology; was an accomplished pianist; and loved to memorize poetry for fun. In 1948 Ron matriculated at the Pennsylvania State University and graduated in 1952 with a B.S. in Botany. He continued at Penn State and, with the aid of a Teaching Assistantship, graduated in 1954 with a M.S. in Botany (thesis: A Flora of Centre County, Pennsylvania). At that time Ron was primarily interested in vascular plants, but while collecting vascular plants for his Master’s thesis became intrigued and fascinated by the bryophytes he encountered. He continued his education (this time centered on bryology) at Florida State University and graduated with a Ph.D. in Botany (dissertation: A taxonomic revision of North American Fissidens, section Bryoidium) in 1957 (Fig. 1). Lewis E. Anderson (Fig. 3B) greatly encouraged and influenced Ron’s decision to work on Fissidens sect. Bryoidium as his Ph.D. dissertation topic by discussions they had on the group at a meeting of the Association of Southeastern Biologists. Ron went on to spend much of his scientific career studying the genus Fissidens, and much later in life when asked why he decided to work on the group answered simply “I liked the way the plants laid flat under a cover slip on a microscope slide.” Fissidens is a difficult moss genus with a considerable number of Southern Hemispheric species that for many years have been taxonomically tamed by the Fissidens Grand Triumvirate: Ron (New World), Ida Bruggeman-Nannenga (Africa), and Zen Iwatsuki (Asia). At Florida State Ron studied under the supervision of 4 Corresponding author’s e-mail: Bruce.Allen@mobot.org DOI: 10.1639/0007-2745-118.3.325

Atractylocarpus costaricensis (C. Muell.) Bartr., New to North America North of Mexico, and Campylopus carolinae Grout, New to Florida

Pseudoleskeella papillosa (Lindb.) Kindb. and Plagiothecium latebricola (Wils.) Schimp. are newly reported from China. Lopidium trichocladon (Bosch & Sande-Lac.) Fleisch. is reported new to mainland China. While studying Chinese specimens collected from Sichuan and Yunnan provinces of southwestern China, we discovered an interesting moss that appeared to be close to Leptopterigynandrum Broth. and Trachyphyllum Gepp. However, a combination of the following characters, including short, double or forked costae and the rhombic and nearly undifferentiated leaf cells with papillae on dorsal surfaces, points to Pseudoleskeella papillosa (Lindb.) Mitt., a rare and phytogeographically interesting species. Pseudoleskeella papillosa differs from species of Leptopterigynandrum by the presence of rather conspicuous papillae on the dorsal side of the leaves, especially of the younger ones; and it differs from the species of Trachyphyllum by the presence of rhombic and nearly undifferentiated leaf cells. Pseudoleskeella papillosa is very close to P. tectorum (Brid.) Broth., but can be easily distinguished from the latter by leaf cells dorsally papillose at their upper ends. Pseudoleskeella papillosa was previously considered to be an arctic-alpine species having a circumpolar distribution restricted to Finland, Norway, Sweden, Siberia, and Greenland (Lewinsky 1974; Wilson & Norris 1989). It has been reported several times from North America, arctic Alaska and the Northwest Territories of Canada by numerous authors (Crum 1985; Steere 1975; Vitt 1976). Except those from Greenland, all North American records of Pseudoleskeella papillosa are considered misidentified (Wilson & Norris 1989). In Asia, this species occurs just outside the arctic zone (Lewinsky 1974). Its range in southwestern China is phytogeographically significant and establishes a circumpolar distribution similar to the much more widely distributed species P. tectorum. The habitats in southwestern China apparently provided a suitable sheltered environment for this arctic element to survive during the post-glacial periods. The Chinese plants are mainly growing on tree trunks at higher elevations between 2,500 to 3,600 meters. Specimens examined. -CHINA. SICHUAN. Markam Co.: Redfearn 35074b (MO, sMs). Dao Chen Co.: He 31681 (Mo, PE). Ruo Er Gai Co.: He 30608 (MO, PE). Ba Tang Co.: He 31520 (MO, PE); Zhong Za District, He 31425, 31342 (Mo, PE). YuNNAN. Dali Co.: Redfearn et al 1524 (KUN, MO, PE, sMS). Plagiothecium latebricola (Wils.) Schimp. was considered to be an European and North American species (Ireland 1969) until Iwatsuki (1974) reported this species from Hokkaido, Japan. Ignatov and Afonina (1992) reported it from Russia, Baltic, Ukraine, Caucasus, Siberia, and middle Asia. Plagiothecium latebricola appears to be a rare moss confined to rotten stumps in swamps, bogs, and marshes. In Sichuan Province, it was found with Tetraphis pellucida on rotten stumps in a Picea forest. The plants ofPlagiothecium latebricola are small, delicate, glossy, and yellowish green, with symmetric to nearly symmetric and erect-spreading leaves. The general habit of this species is similar to that of Isopterygium except for the distinctly decurrent leaves. The small, erect, and symmetric capsules with cilia rudimentary or absent and the shorter setae (ca. 7-10 mm long) distinguish it from other species of Plagiothecium. Gemmae were described from European and North American material (Ireland 1969). We have also seen gemmae from a Russian collection (Ignatov s.n. 24. 7. 1987, Mo). However, no gemmae were found in our Chinese specimen, nor did Iwatsuki (1974) report gemmae from the Japanese specimens. The Chinese station of Plagiothecium latebricola represents the most southern locality for this taxon. Specimen examined. -CHINA. SICHUAN. A Ba Co.: Mai Er Ba District, He 31016 (Mo, PE). Lopidium trichocladon (Bosch & Sande-Lac.) Fleisch. was reported new to eastern Asia (Japan a d Taiwan) by Horikawa (1934). This species is widely distributed in southern Asia from Thailand, 0007-2745/95/383-384