Studies in American Orchids. I

Abstract

Silteen species -,of tropical ,Inlerican orchids are de+cribetl as nc\+-, and llinc new c-ombinations of taxonoltlic irnportamlccl are proposed. These arc arranged in syste111atic order as follou~s: Xerorchis trichorltizn (Krzl.) romb. mov.; Sobrulin kernlesinn sp. nov. : C'runichis A splzlndii sla. nov. ; Spiruntlzes decorn sp. nov. ; .Ypirnnthes Wendlandinnu (Krzl. ) ca)mb. nov. ; E:rythrodr.s Ortgiesii (Ilort. ) (-omi>. nov. ; P h y rosiphon Bangii (Schltr. ) co~nb. nov. ; Lepanthes hentirhodo sp. nov. ; Lepanthes mncrc~ntha sp. nov. ; Lepanthes p(m1muritoensis sp. nov. ; Lapantkes pendens sp. nov.; Lepanfhes Ifureschii sp. nov.; Pleurothallis Killipi sp. 11ov.l Ylrurothnllis ~( I L~Y~U S (Lchnl. 8i Krzl.) cornb. ncsv.; Pleurotk(mZ2is Tunguraguae var. minor vnr. nov. ; P<pider~dru.r?z Cuatrec;.u.sc~sii sp. nov. ; .5'capirzyglotti. ,Racoida (Krrl.) conlh. nov.; Orleanesia muculatn sp. nov.; Polycycnis ovnnta sp. no\..; MasklZaria cuenctl?La nom. nov. ; A/lnxillaria pleuraathoides (Schltr.) comb. nov. ; Rodriguesiu .Ytroh&i sp. nov. : Diptemnthus pluni$olizrs (Rc1ib.f.) comb. no\.. ; 7'elipn:on ochraceu s sp. nov.; l'elipogon rose?hs sp. nov.Sincea-c thanks are due to Miss LucBla K. \Veresub, University of Toronto, for her inv~iluitl>%e criticisa-rr ancf correction of this paper.

Notes on the natural history of Cyclopogon obliquus (Orchidaceae: Spiranthinae) in Costa Rica

“…Most of the collections from both the Americas and southeast Asia come from man-made habitats, especially lawns and pots (Garay 1978, Comber 1990, Cribb & Ormerod 2000, suggesting that the seeds -or even whole plants-are accidentally transported in the soil of transplanted crops or ornamentals. This is the most likely scenario on how it got to Bogor in the first place; the Botanic Gardens had been actively importing plants from throughout the tropical world since the 1840´s (Indonesian Institute of Sciences 2002).…”

The Orchidaceae of Ruiz & Pavón’s “Flora Peruviana et Chilensis”. A taxonomic study. I

“…Rchb.f., typified by Evelyna casapensis Rchb.f. This group has been reviewed by Garay (1978a), who presented a synopsis and a key to the species of the section as a contribution in preparation of the orchid flora of Colombia and Ecuador (Garay, 1978b). According to Garay (1978a), the ten species of Sect.…”

“…This group has been reviewed by Garay (1978a), who presented a synopsis and a key to the species of the section as a contribution in preparation of the orchid flora of Colombia and Ecuador (Garay, 1978b). According to Garay (1978a), the ten species of Sect. Cephalelyna are characterized by the terminal, capitate inflorescence with the rachis shortened into a subglobose head, a set of features that fit well the plant illustrated by Rivera and to the correspondent exsiccatum (MA 810751).…”

“…28C The typification of Maxillaria ramosa, as well as the understanding of its real taxonomic identity, has been particularly problematic. The name has been generally misapplied to Ornithidium pendulum (Garay, 1967;Garay & Sweet, 1972;Dodson & Dodson, 1980;Brako & Zarucchi, 1993;Jørgensen & León-Yánez, 1999;Atwood, 2001, among others) a different species, which in turn has been described under six different names from three to four countries (see Blanco & al., 2008), including Scaphyglottis tafallae Rchb.f., also described from the original materials of the Expedition. McIllmurray and Oakeley (2004b) unraveled part of the confusion, presenting for the first time the illustration of Maxillaria ramosa painted by Isidro Gálvez and discussing the original manuscript by Ruiz kept in the Archives of RJB.…”

The orchid flora of Cocos Island National Park, Puntarenas, Costa Rica

“…The name was based on a plant collected in Cuchero, Peru. Garay transferred this species to Maxillaria (Garay, 1967). Molecular studies and nomenclatural changes in Maxillariinae Benth.…”