New taxa in Commelinaceae

Two new names are published: Gibasis venustula subsp. robusta D. R. Hunt and Tradescantia poelliaeT). R. Hunt.     

New taxa in Commelinaceae

Two new names are published: Gibasis venustula subsp. robusta D. R. Hunt and Tradescantia poelliaeT). R. Hunt.     

New taxa within the orderOrchidales

One new tribe (Telipogoneae) and nine new subtribes (Bartholininae, Cheirostylidinae, Elleanthinae, Epidendrinae, Herminiinae, Isochilinae, Oberoniinae, Phragmipeddiinae, Thecopodinae) are described. The status changes for five other taxa are proposed.     

New taxa ofRubiaceae-Rubieae from Iraq

New species ofCrucianella (1),Asperula (2),Galium (3), and a new subspcies (Galium), most of them endemic to Iraq, are described and their closest affinities discussed. A number of new combinations and status alterations withinCrucianella, Asperula, Galium andCruciata are also published.     

New taxa ofRubiaceae-Rubieae from Iran

Asperula sect.Oppositifoliae is validated. 2 new species ofAsperula and 7 new species and 1 variety ofGalium from Iran are described, discussed in respect to their affinities and illustrated. 2 subspecies are raised to species rank.     

The lesser-known protostome taxa: an introduction and a tribute to robert p. Higgins

Most biologists are familiar only with a few of the approximately40 extant animal phyla. The purpose of this symposium was torenew interest in the lesser-known invertebrate taxa, encouragetheir use in research and teaching and to promote the relevanceof high-level systematic studies. This paper reviews the twomajor views of metazoan evolutionary relationships with particularattention to the lesser-known taxa and to some of the new and/orconflicting terminology used in current animal phylogeneticstudy. The current use of lesser-known taxa in research is brieflydescribed, and the discussion that followed the symposium issummarized. The paper concludes with a brief history of thesymposium and a tribute to Robert P. Higgins, who organizedthree "Symposia on the Lesser-Known Invertebrates" over thepast 25 yr.     

New taxa from the Venezuelan Guayana

Seven new taxa, mainly from the Guayana Highland of Venezuela, are described. These include four new species (Cottendorfia atrorosea, Navia emergens, Navia ovoidea, and Pitcairnia nematophora) and one new variety (Cottendorfia brachyphylla var. angustior) of Bromeliaceae, one new species (Swartzia cowanii) of Leguminosae, and one new species (Marlierea pudica) of Myrtaceae.     

New and critical taxa of aquatic hyphomycetes

Species of Alatospora and Margaritispora have been studied in pure culture. The conidial morphology of 33 Alatospora isolates was examined. The concept of Alatospora acuminata is broadened to embrace strains with a high percentage of unbranched and triradiate conidia as well as those with large conidia with an arcuate axis and narrow branch insertion. Alatospora constricta is neotypified, and a new generic name is introduced to accommodate a species with similar conidia but different conidiogenesis. Margaritispora aquatica is neotypified and M. monticola is neotypified and recombined in a new genus.     

New taxa of Asteraceae from southern Mexico

Fieldwork in connection with the project to document the flora of the Mixteca Alta region, northwestern Oaxaca, Mexico, has resulted in the discovery of the following taxa: Verbesina calzadae and Viguiera grammatoglossa var. huajuapana (Heliantheae); Sinclairia manriquei (Liabeae); and Psacalium schillingii (Senecioneae).     

New taxa in Anisotes (Acanthaceae)

Diagnoses of three new species and three new subspecies of Anisotes are presented together with those of six subgeneric taxa.     

New taxa and nomenclatural changes Volume 39

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New taxa from Cerro Marahuaca,Venezuela

Two new species,Siphocampylus tillettii (Campanulaceae: Lobelioideae) andDuidaea marahuacensis (Asteraceae), are described from the summit of Cerro Marahuaca, Venezuela. These constitute the first records of any species known from the summit of this sandstone tepui.     

New taxa of Jurassic bivalve mollusks from Iran

A new subgenus, Isognomon (Semignomon), and eight new species Isognomon (Semignomon) tabasicum, Arcomytilus nudus, Plagiostoma immensum, Pinna Alborzica, Trigonia plana, Protocardia razavii, Corbula jurassica, and Ceratomya persica are described from the Jurassic of Iran.     

New taxa of Leguminosae-Caesalpinioideae from Bahia,Brazil

Brodriguesia santosii, gen. & sp. nov., from the coastal rain forest of Bahia, is described, illustrated and compared with nearly related genera of the tribe Detarieae. In addition, three new species, Arapatiella emarginata (the second species of the genus), Swartzia oblata, S. pinheiroana and one new variety, Goniorrhachis marginata var. bahiana, are presented.     

New taxa of compositae (Eupatorieae) from Brazil

A new genus and speciesMonogereion carajensis and a new species ofAgeratum, A. glomemtum, are described from Para, Brazil. The relationships of the new genus and species are discussed.     

New taxa of heliconia (Heliconiaceae) from Ecuador

Three new species (Heliconia fredberryana H. litana, andH. lutheri) and one new subspecies (H. obscura ssp.dichroma) from Ecuador are described, illustrated, and discussed.