James W. Grimes

A phylogenetic analysis of the Acacieae and Ingeae (Mimosoideae: Fabaceae) based on trnK, matK, psbA-trnH, and trnL/trnF sequence data

Abstract A phylogenetic analysis of exemplars of Acacieae, Ingeae, and some Mimoseae, based on trnK, matK, psbA-trnH, and trnL/trnF sequence data, is presented. The results support other recent studies in showing that neither the Ingeae nor Acacieae is monophyletic. Some subgenera of Acacia, specifically subgenera Acacia and Phyllodineae, are monophyletic, but subg. Acacia is in a basal polychotomy with various members of Mimoseae and a large clade with the other members of Ingeae and Acacieae. Acacia subg. Phyllodineae is sister group to members of the Ingeae. Both the Ingeae and Acacia subg. Aculeiferum are paraphyletic.

Subtree Analysis, Nothofagus and Pacific Biogeography

, and one fungal taxon, analysed using the programCOMPONENT version 2.0 (Page, 1993). Their cladog-ram is: (Mad (Afr, E SAm)) (S SAm (NZ (NC (NG,Aust)))), relating Madagascar (Mad) to Africa (Afr)and north-eastern South America (E SAm) on the onehand, and southern South America (S SAm) to NewZealand (NZ), New Caledonia (NC), New Guinea(NG) and Australia (Aust) on the other (Fig. 1A). Ofspecial interest is their conclusion that New Zealandand Australia are related more closely to each otherthan to South America, in contrast with cladogramsrelating South America and Australia (e.g. Brundin,1966 and others listed in Linder and Crisp, 1995).

Metamerism, heterochrony, and inflorescence morphology of the Pithecellobium-complex (Leguminosae: Mimosoideae: Ingeae)

The diverse inflorescence morphology of species in the Pithecellobium-complex is shown to be a result of: 1) the organization of the components of the inflorescence and their relative positions; 2) the hierarchical relationship of the axes of the inflorescences and the position they assume in total tree architecture; and 3) heterochronic development of the components of the inflorescence. It is shown that the typological system of nomenclature of inflorescences leads to false assumptions of homology and therefore must be discarded. The morphology of inflorescences is discussed in terms of metamerism, and the term Repeating Growth Unit (RGU) is introduced and is defined as the smallest complete sequence of metamers produced by a meristem. A module is defined as the sequence of RGUs produced by a meristem. An inflorescence is defined as that sequence of metamers in an RGU which participates in the production and/or presentation of flowers and fruit. Heterochrony, proleptic and sylleptic buds, and shoot dimorphism are discussed and their role in modifying inflorescence morphology in the Pithecellobium-complex is illustrated. Examples from the Pithecellobium-complex are provided which demonstrate the various modifications of the inflorescence that result from the interaction of these various phenomena.

New taxa of Apiaceae, Hydrophyllaceae and Saxifragaceae from Oregon and Idaho

One new taxon from Idaho,Saxifraga bryophora A. Gray var.tobiasiae, and two from Oregon,Cymopterus acaulis (Pursh) Raf. var.gree-Ieyorum andPhacelia lutea (Hook. & Arn.)J. T. Howell var.mackenzieorum are described and compared with their nearest relatives.

ORPHANODENDRON, A NEW GENUS OF CAESALPINIOID LEGUMINOSAE FROM NORTHWESTERN COLOMBIA

A taxonomically isolated new genus is described to accommodateOrphanodendron bernalii Barneby & Grimes, sp. nov., from western Antioquia, Colombia. Discussion and illustration display an anomalous syndrome of morphological characters that equivocally suggests affinity to Caesalpinioideae tribe Sclerolobieae Bentham (=Caesalpinieae sensu Polhill & Vidal).

The Herbarium of Wesleyan University, Middletown, Connecticut

In 1981 the Herbarium of Wesleyan University, Middletown, Connecticut (WECO) was donated to the New York Botanical Garden (NY). We present here an index to the collectors and a list of the verified types in the WECO Herbarium.

Notes on the asters (Asteraceae) of Edward S. Burgess

Edward Sanford Burgess is best remembered for his taxonomic works on the Biotian asters. In 1928 hisAster herbarium was bequeathed to the New York Botanical Garden. Burgess described 124 taxa ofAster, for 90 of which he failed to designate a type. A list of the BurgessAster types deposited at NY is presented, including 57 lectotypic designations.

Calliandra anthoniae (Leguminosae, Mimosoideae, Ingeae), a new species, and a new combination in Pseudopiptadenia Rauschert (Leguminosae, Mimosoideae, Mimoseae)

Calliandra anthoniae is described and illustrated, and the combinationPseudopiptadenia suaveolens is made.

A new species of Inga (Fabaceae, Mimosoideae, Ingeae) from Atlantic Forest in Bahia, Brazil

Inga unica Barneby & J. W. Grimes, notable for a syndrome of: a) softly pilose foliage, b) emarginate leafstalks lacking nectaries, c) leaflets 2–3 pairs, of moderate size, d) filiform pliant peduncles, e) globose capitula, f) elongate linear floral bracts persistent after fall of the flowers, g) calyx more than half as long as corolla, and h) thin-textured fruit shattering after falling, is described, figured, and discussed. It appears related toI. (Leptinga) nutans (Vellozo) Martius ex Bentham.

Description of Acacia tenuifolia var. producta (Leguminosae, Mimosoideae), a new variety from the Guianas, and discussion of the typification of the species

A new variety, Acacia tenuifolia (Linnaeus) Willdenow var. producta is described and illustrated. The typification of the species is discussed. Acacia paniculata Willdenow and A. multipinnata Ducke are lectotypified and placed in synonomy of Acacia tenuifolia.