Hong De-Yuan

Pollen morphology of the platycodonoid group (Campanulaceae s. str.) and its systematic implications

In this study, we examined the pollen morphology of the platycodonoid group in Campanulaceae s. str. using a scanning electronic microscope. We used pollen grains of 25 accessions representing 24 species of the Codonopsis complex (including Campanumoea, Cyclocodon, Leptocodon, and all three subgenera of Codonopsis), which is extremely controversial among authors for taxonomic treatment. Pollen morphology of all the other genera in the group observed by previous authors is taken into account in our discussion. A total of nine pollen types with two subtypes in the group were recognized and named for the first time. Molecular and morphological data imply that each pollen type corresponds to a natural group at generic level, and thus the mergence of Leptocodon with Codonopsis and the restoration of Cyclocodon as a separate genus are justifiable, and Codonopsis subg. Pseudocodonopsis, subg. Obconicicapsula, and two species of Codonopsis subg. Codonopsis (C. purpurea and C. chimiliensis) may be better classified as three independent genera separate from the core Codonopsis.

Taxonomic Notes on Chinese Campanulaceae

Abstract Three new combinations are proposed for Codonopsis convolvulacea Kurz subsp. grey-wilsonii (J. M. H. Shaw) D. Y. Hong, C. foetens Hook. f. & Thomson subsp. nervosa (Chipp) D. Y. Hong, C. pilosula (Franch.) Nannf. subsp. tangshen (Oliv.) D. Y. Hong, with changes in rank for all three names. Nine specific, three subspecific, and seven varietal names are reduced to synonymy for the first time in the present paper. In addition, the following names are lectotypified: C. benthamii Hook. f. & Thomson, C. bicolor Nannf., C. convolvulacea subsp. forrestii (Diels) D. Y. Hong & L. M. Ma, C. foetens Hook. f. & Thomson, C. foetens subsp. nervosa (Chipp) D. Y. Hong, C. macrocalyx Diels, C. macrocalyx var. coerulescens Hand.-Mazz., C. macrocalyx var. parviloba J. Anthony, C. modesta Nannf., C. rotundifolia Benth. in Royle, and Campanumoea pilosula Franch. The name Codonopsis convolvulacea is neotypified.

A New Species and a New Specific Synonym of Pedicularis (Scrophulariaceae) from the Hengduan Mountains, China

Pedicularis inflexirostris F. S. Yang, D. Y. Hong & X. Q. Wang, a new species from the Hengduan Mountains, China, is described. Pedi- cularis inflexirostris is different from P. tatarinowii Maximowicz in having more slender stems, fewer branches, a cucullate middle lobe of the lower co- rolla lip, and glabrous filaments. Pedicularis deqi- nensis H. P. Yang is reduced to a synonym of P. ramosissima Bonati on the basis of their common characters of long and dense branches, recurved calyx teeth, pilose indumentum on the inner margin of the calyx, and cucullate middle lobe of the lower corolla lip.

Additional Notes on the Scrophulariaceae of China

Two species, Pterygiella suffruticosa Hong and Scrophularia lhasaensis Hong, and one subspecies, S. chasmophila W. W. Smith subsp. xizangensis Hong, are described as new from southwestern China. In addition, four new combinations are proposed in the genera Triphysaria and Mazus: T chinensis (Hong) Hong, M. pumilus (Burman f.) van Steenis var. wangii (Li) Chin, Mazus pumilus (Burman f.) van Steenis var. delavayi (Bonati) Chin, and Mazus pumilus (Burman f.) van Steenis var. macrocalyx (Bonati) Chin. The following new taxa and combinations are proposed to make the names available for the forthcoming account of the Scrophulariaceae in volume 18 of the Flora of China. Pterygiella suffruticosa Hong, sp. nov. TYPE: China. SW Sichuan: Muli, Ninglang, Chongtianhe, 2000 m, 27 Sep. 1983, Qinghai-Xizang Expedition 14400 (holotype, PE; isotype, PE). Figure 1. A ceteris speciebus differt habitu fruticoso et caulibus teretibus. Shrubs, ca. 1 m tall. Stems terete, gray, 5-7 mm thick; shoots densely pilose. Leaves opposite, sessile, linear-elliptic, 3-5 x 0.3-1 cm, densely puberulent on both surfaces, base cuneate, margin entire, apex acute. Spikes terminal; lower bracts similar to upper leaves in shape and size, gradually decreasing in size upward. Pedicels up to 3 mm long, pilose. Calyx 1.3-1.5 cm long, puberulent, cleft to middle, slightly 2-lipped; lobes subulatedeltoid. Corolla yellow or pale pink, 1.4-1.6 cm long; upper lip galeate, entire; lower lip 3-lobed, middle lobe acute, lateral ones rounded, lanose in 2 vertical patches. Pistil hairy; ovary ellipsoid; style ca. 8 mm long. Pterygiella Oliver, which is endemic to China, consists of five species, all of which are annuals, though P bartschioides Handel-Mazzetti is also a biennial. This new species, P suffruticosa, is readily distinguished from all by its shrubby habit. Paratypes. CHINA. Yunnan: E of Lijiang, banks of the Yangtze River, Rock 10469 (A); Mengtze, in ravine, 1400 m, Henry 9141 (A). Scrophularia lhasaensis Hong, sp. nov. TYPE: China. Xizang (Tibet): Lhasa, hills W of Lhasa and beyond Trisum, 4500 m, on rocks, 1 Sep. 1942, F Ludlow & G. Sherriff 9053 (holotype, A). Scrophulariae chasmophilae W W Smith affinis, sed a qua foliis majoribus, 1.7-4.5 cm longis, 1-2.7 cm latis, integris, corolla minore, ca. 10.5 mm longa, lobis postici labii angustis, 2 mm latis, non imbricatis. Caespitose perennials, less than 15 cm tall, glandular with multicellular hairs throughout except for corolla, stamens, and pistil. Rhizomes ca. 9 mm thick. Stems several, with 1 or 2 pairs of scaly leaves in lower part, branched in upper part. Leaves opposite; petiole 2-3 mm long or upper leaves sessile; leaf blade ovate to ovate-orbicular, 1.7-4.5 x 1-2.7 cm, base rounded or nearly truncate, margin entire or rarely scarcely serrate, apex obtuse or acute. Cymes 2, terminal, forming an inflorescence of 4 flowers; peduncle ca. 1.2 cm long; bracts linear. Pedicel 2-3 mm long. Calyx ca. 5 mm long, glandular-pilose, cleft nearly to base; lobes linear-oblong, obtuse at apex, ca. 1.8 mm wide. Corolla greenish yellow, ca. 10.5 mm long, urceolate, glabrous on both sides; upper lip ca. 3.8 mm long, ca. 2.3 mm longer than lower lip; lobes ca. 2 mm wide, not overlapping; lower lip ca. 2 mm long. Stamens slightly exceeding corolla tube in height, glabrous; staminode clavate. Pistil including the style ca. 8.5 mm long, glabrous, ovary gradually attenuate at apex into style. Scrophularia lhasaensis is most closely related to S. chasmophila W. W. Smith and S. przewalskii Batal. From these, it differs in having larger leaves 1.7-4.5 cm long and 1-2.7 cm wide, entire or subentire leaf margins, smaller corollas ca. 10.5 mm long, and narrower (ca. 2 mm), nonoverlapping lobes of upper corolla lips. NovoN 6: 372-374. 1996. This content downloaded from 207.46.13.129 on Mon, 27 Jun 2016 05:34:17 UTC All use subject to http://about.jstor.org/terms Volume 6, Number 4 Hong 373 1996 Scrophulariaceae of China

Paeonia anomala subsp. veitchii (Paeoniaceae), a New Combination

A study of morphological characters of Paeonia veitchii Lynch, based on over 180 specimens, reveals that the following new combination is necessary: P anomala L. subsp. veitchii (Lynch) D. Y. Hong & K. Y. Pan, comb. et stat. nov. The name is also lectotypified. Three previously recognized varieties of P veitchii are here reduced to synonymy for the first time: P veitchii var. leiocarpa W. T. Wang & S. H. Wang ex K. Y. Pan, P. veitchii var. uniflora K. Y. Pan, and P woodwardii Stern & Cox.

A Taxonomic Revision Of Rhododendron subg. Tsutsusi sect. Brachycalyx (Ericaceae)1

Abstract Section Brachycalyx Sweet comprises nearly 30 species in Rhododendron L. subg. Tsutsusi (Sweet) Pojark. (Ericaceae) and is mainly distributed from China to Japan as well as eastern Asia. A taxonomic revision of section Brachycalyx is proposed and eight species with one subspecies are recognized. Rhododendron dilatatum Miq. var. decandrum Makino is newly recognized at the new rank of subspecies as R. dilatatum subsp. decandrum (Makino) X. F. Jin & B. Y. Ding. Lectotypes are designated for R. dilatatum var. glaucum Hatus., R. farrerae Tate ex Sweet var. leucotrichum Franch., R. mariesii Hemsl. & E. H. Wilson, R. reticulatum D. Don ex G. Don, and R. wadanum Makino.

A taxonomic revision of the Syringa pubescens complex (Oleaceae).

Abstract Over 19 species and numerous infraspecific taxa have been described in the Syringa pubescens Turcz. complex (Oleaceae), and the taxonomy of this complex has been controversial. To provide a rational taxonomic revision of the complex, field observations were undertaken across China and 14 populations were sampled. The principal coordinate and principal components analyses and general statistical analysis evaluate the significance of characters for taxonomy. As a result, one species is recognized, with three subspecies: Syringa pubescens subsp. pubescens Turcz., subspecies microphylla (Diels) M. C. Chang & X. L. Chen, and subspecies patula (Palib.) M. C. Chang & X. L. Chen. Syringa meyeri C. K. Schneid. is treated as a new synonym of S. pubescens subsp. pubescens, and S. julianae C. K. Schneid. and S. meyeri var. spontanea M. C. Chang as new synonyms of S. pubescens subsp. microphylla. Lectotypes for S. microphylla Diels, S. dielsiana C. K. Schneid., and S. venosa Nakai are designated here.

Nomenclatural Notes on the Morinaceae and Valerianaceae in China

Abstract Two new combinations in the Morinaceae are proposed for the Flora of China: Acanthocalyx nepalensis (D. Don) M. J. Cannon subsp. delavayi (Franch.) D. Y. Hong and Morina ludlowii (M. J. Cannon) D. Y. Hong. Lectotypes are designated for three names in the Valerianaceae, Valeriana daphniflora Hand.-Mazz., V. stenoptera Diels, and V. stenoptera var. cardaminea Hand.-Mazz.

A New Species of Chinese Adenophora (Campanulaceae)

Adenophora ningxianica is described, and its relationships to A. wawreana Zahlbruckner and A. gmelinii (Sprengel) Fischer are discussed. The name Adenophora ningxianica Hong, which first appeared in Hong (1983) and subsequently in many local Chinese floras, was not validly published because it was not accompanied by a Latin description or diagnosis. It is herein validated, and a detailed description in English is provided. Adenophora ningxianica Hong ex Ge & Hong, sp. nov. TYPE: China. Ningxia: Ala (Helan) Mountains, Taszekow, 1600 m, 28 Aug. 1933, Y. Y Pei 120 (holotype, PE). Species similis A. wawreanae et A. gmelinii, sed ab illa differt foliis sessilibus glabris, capsula tenui cylindrica ca. 8 mm longa, seminibus majoribus; ab hac differt corolla parva et angusta, stylo exserto, calycis lobis angustis parvis et nigro-callosis. Perennial herbs. Stems 30-50 cm tall, several from base, unbranched, erect, glabrous, rarely pubescent. Basal leaves cordate or obovate; cauline leaves alternate, sessile or short petiolate; leaf blade 2-7 cm long, 0.2-1.8 cm wide, lanceolate to linear-lanceolate or rarely linear, glabrous on both surfaces, base cuneate, margin serrate. Inflorescences few-flowered racemes or panicles. Pedicel 0.5-1.5 cm long, slender. Calyx tubes obovoid, glabrous; calyx lobes 2-6 mm long, ca. 1 mm wide, subulate or subulate-lanceolate, margin mostly with a pair of small verrucate teeth or rarely entire. Corolla 1.4-1.6 cm long, narrowly campanulate, blue or purplish blue; lobes ca. 3.5 mm long, ovate-triangular. Disc 2-2.5 mm long, tubular, glabrous. Style 1.6-1.8 cm long, slightly exserted. Capsule ca. 8 mm long, ca. 3 mm diam., long ellipsoid. Seeds ca. 2 mm long, yellow, oblong, with a winglike ridge. Flowering July-August, fruiting September-October. Adenophora ningxianica is most closely related to A. wawreana Zahlbruckner and A. gmelinii. From these, it differs in having a narrower corolla, a slightly exserted style, sessile or short-petiolate and glabrous cauline leaves, smaller calyx lobes with toothed margins, slender capsules, and larger seeds. Adenophora wawreana has a broadly campanulate corolla, a distinctly exserted style, pubescent cauline leaves with petioles ca. 2.5 cm long, 4-10-mm-long calyx lobes, broader capsules, and seeds 0.8-1.2 mm long. Adenophora gmelinii differs from A. ningxianica in having a broadly campanulate corolla, a slightly included style, entire and wider calyx lobes, and broader capsules 4-7 mm in diameter. Paratypes. CHINA. Ningxia: Helan Mt., Suyukou, Y Q. He 7315 (PE); Helan Mt., Wudaotai, Yellow River Exped. 8950 (PE); Helan Mt., Gilawu Vellay, Group He 255 (PE). Gansu: Lanzhou, Xinlong Mt., Y Q. He 5390 (PE). Acknowledgments. We are grateful to Yang Qiner for revising the Latin diagnosis and Ihsan AlShehbaz for his help with the manuscript. This work was supported by the National Natural Science Foundation (Youth) of China (grant #39600009).