A new series and three new species of Passiflora subgenus Astrophea from the Guianas

A new series,Passiflora ser.Carneae, and three new species are described inPassiflora subg.Astrophea:P. ascidia from Guyana and Venezuelan Guayana;P. balbis from Guyana, Venzuelan Guayana, and Amazonian Brazil; andP. saulensis from central French Guiana. A key to the 19 Guiana species ofPassiflora subg.Astrophea is provided.     

Novae Gesneriaceae neotropicarum VI: five new Gesneriaceae from northwestern South America

Columnea chrysotricha, C. cuspidata (bothColumnea sect.Collandra), andGasteranthus recurvatus are described from Colombia;C. sulcata (Columnea sect.Collandra) from Ecuador and Colombia; andDrymonia anisophylla from the Amazonian lowland rain forests of Brazil, Colombia, Ecuador, and Peru.     

Two new species of Paramachaerium (Leguminosae) and a brief résumé of the genus

Paramachaerium Ducke, a genus of neotropical trees, has been known hitherto from three species,P. schomburgkii (Guyana and Brazil),P. ormosioides (French Guiana and Brazil), andP. gruberi (Panamá). Two new species are herein described,P. krukovii (western Brazil) andP. schunkei (Peru).     

Revision of Ticorea Aubl. (Rutaceae, Galipeinae)

Ticorea comprises five species, which occur in the Guianas, throughout the Amazonian basin, and on the lower eastern slopes of the Andes in Ecuador, Peru, and Bolivia. Two of the five are described here as new: T. diandra, from eastern Ecuador and adjacent Peru, and T. froesii, from Maranhão and Pará, Brazil.     

Rubiacearum Americanarum Magna Hama Pars XXXII. New Species and a New Combination in Coussarea (Coussareeae) from Western South America

The Neotropical genus Coussarea is species-rich and widely distributed but not well known. Seven new species are described here, documented mainly by recent botanical exploration: C. acrensis is found in western Brazil, C. boliviensis and C. mexiae in the mountains of northwestern Bolivia, and C. camposiana, C. maranonensis, C. pseudopilosula, and C. vasqueziana in Peru. The new combination C. insolita is based on Rudgea insolita from Colombia.     

New species of Rhodostemonodaphne (Lauraceae) from northeastern South America

Seven new species of Lauraceae from Surinam, French Guiana, and Amapá (northeastern Brazil), are described and illustrated. These areRhodostemonodaphne elephantopus, R. Leptoclada, R. morri, R. revolutifolia, R. rufovirgata, R. saülensis, andR. scandens.     

Five new species of Solanum section Geminata (Solanaceae) from South America

Five new species of South AmericanSolanum are described:S. morii from French Guiana,S. superbum andS. tumescens from Bolivia,S. platycypellon from southern Bolivia and northern Argentina andS. gertii from southeastern Brazil. An illustration and distribution map for each species is provided and relationships to close relatives are discussed.     

A new species of Ocotea (Lauraceae) from French Guiana

A new species ofOcotea,O. diffusa van der Werff, is described and illustrated based on recent collections from French Guiana and adjacent Brazil.     

New species of cryptochloa and piresia (Poaceae: Bambusoideae)

Two new species are added toCryptochloa,C. unispiculata from Peru andC. capillata from Brazil, the latter transferred from the genusOlyra. The genusPiresia is also augmented by two new species,P. macrophylla from Peru andP. leptophylla from Bahia, Brazil. These species represent, respectively, the westernmost and easternmost limits of distribution of the genus.     

Two new species of neotropical chrysobalanaceae

Two new species of Chrysobalanaceae from recent collections are described, discussed and illustrated:Couepia nutans, an upland species from the Andes in El Valle, Colombia, andLicania anneae, a lowland species from the Tapajos River basin of Amazonian Brazil.     

Two notable new species of Cissus (Vitaceae) from South America

Two new species ofCissus are described and illustrated:Cissus boliviana, a simple-leaved species from Bolivian forests, andC. bracteosa, a species with an unusual indumentum from rain forests of Colombia, Ecuador, and Peru.     

A new species,new combinations,and a new name in Acanthaceae from northern South America

A new species of Acanthaceae (Ruellia saülensis) is described and illustrated from French Guiana, and three new combinations (Justicia potarensis, J. flaviflora, andJ. tobagensis) and one new name (Justicia coppenamensis) are proposed. The new species is compared to its closest relative (Ruellia rubra), and a justification of the transfers is provided.     

New species of Rubiaceae from French Guiana,Brazil, and Colombia

Collections from French Guiana, Amazonian Brazil, and Colombia taken in the last 20 years include new species in the following genera:Duroia, Pagamea, Psychotria, Randia, Retiniphyllum, Rudgea, Sabicea, Sipanea, andSphinctanthus. Twenty-one new species are described and five are illustrated.     

Five new species of Heteropterys (Malpighiaceae) from Central and South America

Five-new taxa ofHeteropterys H. B. K. subsect.Aptychia Nied. are described, illustrated, and mapped:H. andina from Peru;H. minutiflora from Costa Rica; andH. bullata, H. capixaba, andH. oberdanii, from the Atlantic coastal forest of Brazil. The affinities and diagnostic characters of each species are discussed.     

A revision of Erythrochiton sensu lato (Cuspariinae,Rutaceae)

In the rutaceous subtribe Cuspariinae, species with relatively large, valvate, colored calyces have been assigned to Erythrochiton, but differences in arrangement of leaves, type of inflorescence, union of petals, of filaments, and of carpels, indument of corolla and testa, appendages of anthers, height of the intrastaminal disc, and exine of the pollen argue for the recognition of three genera. Erythrochiton s. str., characterized by often perennating inflorescences, connate, usually glabrous petals, free carpels, tomentulose seeds, and spinulose exine, consists of seven species of which four are new: E. fallax from the eastern flanks of the Andes from Colombia to Bolivia, E. odontoglossus from western Ecuador and adjacent Peru, E. trichanthus from eastern Peru, and E. gymnanthus from Costa Rica. The assignment to Toxosiphon of four species with woolly, coherent petals, connate carpels, glabrous seeds, and reticulate exine necessitates three new combinations: T. carinatus, T. macropodus, and T. trifoliatus. Recognition of a third unispecific genus with opposite simple leaves, sparsely pubescent, coherent, clawed petals, and spinulose exine requires a new genus name, Desmotes, and a new combination, D. incomparabilis.     

Raritebe,an overlooked genus of the rubiaceae

Raritebe contains one species with two subspecies, the latter differing significantly in floral biology.Raritebe palicoureoides subsp.palicoureoides is heterostylous and is known from the Cordilleras Central and Oriental in Colombia and from east of the Andes in Ecuador and northeastern Peru;R. palicoureoides subsp.dwyeranum is homostylous and known only from west of the Andes in Colombia and from Panama and Costa Rica. The most probable hypothesis is that the selfincompatible subsp.palicoureoides gave rise to subsp.dwyeranum through genetic crossing over followed by long distance dispersal of the resulting self-compatible progeny. Coherent anthers with an unusual method of pollen release are characteristic of subsp.dwyeranum. Raritebe palicoureoides subsp.dwyeranum andR. palicoureoides subsp.palicoureoides var.antioquianum are described as new.     

Croton dissectistipulatus, a new species of Euphorbiaceae from Amazonian Brazil

A new species ofCroton,C. dissectistipulatus, is described from Amazonian Brazil. This species is superficially similar toC. timandroides from northeastern and southeastern Brazil, but differs in having petiolate leaves with glandular margins, persistent stipules, conspicuous racemose inflorescences, staminate flowers having externally glabrous sepals and 3 stamens, and pedicellate pistillate flowers. The systematic position ofC. dissectistipulatus relative to the sections ofCroton is discussed.     

New species of Hypocreales (Fungi,Ascomycetes)

The new ascomycetes Hypomyces succineus, Podostroma eperuae, and Nectria phialotrichi are proposed. Hypomyces succineus occurs on basidiomata of Pholiota sp. in New York; its anamorph is described as the new species Cladobotryum succineum. Podostroma eperuae occurs on decaying pods of a species of Eperua found in French Guiana and Guyana. Its anamorph is unknown. Nectria phialotrichi occurs on perithecia of Nectria sp. and bark in Guyana; its anamorph is referred to the anamorph genus Onychophora.     

New rubiaceae from French Guiana

Four new species and one new variety of Rubiaceae from French Guiana are described:Psychotria alloantha, P. cypellantha, P. squamelligera, P. viridibractea, andSipanea ovalifolia var.villosissima.