No. 1, August, 1920] TAXONOMY OF VASCULAR PLANTS 147 



1049. Schlechter, R. Die Gattung Sigraatostalix Rchb. f. [The Genus Sigmatostalix 

 Rchb. f.] Rep. Sp. Nov. 15: 139-148. 1918. — The species previously assigned to the genus 

 Sigmatostalix are found to be very diverse structurally and from them have been segregated 

 the new genera Petalocentrum and Roezliella. The three genera are compared critically and 

 under each is given a key to the species properly assigned to them. Besides the new generic 

 diagnoses the following species new to science and new combinations are included: Petalo- 

 centrum pusillum (Sigmatostalix pusilla Schltr.), P angusti folium, Roezliella dilalala (Sig- 

 matostalix dilatata Richb. f.), R. Wallisii (Sigmatostalix Wallisii Rchb. f.), R. reversa (Sigmato- 

 stalix reversa Rchb. f.), R. malleifera (Sigmatostalix malleifera Rchb. f.), R. Lehmanniana 

 (Sigmatostalix Lehmanniana Kranzl.), Capanemia brachycion (Sigmatostalix brachycion 

 Griseb.), C. Jucrgensiana (Rodriguezia Juergensiana Kranzl.) and C. pygmaea (Rodriguezia 

 pygmaea Kranzl. ). — E. B. Payson. 



1050. Schlechter, R. Mitteilungenuber einige europaische und mediterrane Orchideen. 

 I. [Contributions concerning some European and Mediterranean Orchids. I.] Rep. Sp. 

 Nov. 15: 273-302. 1918. [Rep. Eu. & Med. 1: 274-302.]— I. The genera Aceras, Himanto- 

 glossum and Anacamptis are discussed in the light of their taxonomic history and present 

 interpretation. Under each genus are listed the species and varieties belonging to it and 

 critical notes are given. II. Orchis persica, a species new to science, is characterized. III. 

 Steveniella, a new genus, is described and to it is referred 1 species, S. satyrioides (Orchis 

 salyrioides Stev.). IV. Gennaria Parlat. is confirmed as worthy of generic rank. Specimens 

 are cited for its single species, G. diphylla (Lk.) Parlat. V. Plalanthera parvula is described 

 as new to science. — E. B. Payson. 



1051. Schlechter, R. Odontioda X Fiirstenbergiana Schltr., ein neuer bigenerischer 

 Orchideenbastard. [Odontioda X Fiirstenbergiana Schltr., a new bigeneric orchid-hybrid.] 

 Orchis 12: 19, 20. 1918. — This new bigeneric hybrid is the result obtained from crossing 

 Cochlioda vulcanica Benth. with Odontoglossum Eduardi Rchb. f. — J. M. Greenman. 



1052. Schlechter, R. Orchidaceae novae et criticae. Decas LI-LIU. Rep. Sp. Nov. 

 15: 193-209. 1918. — The following Guatemalan plants, chiefly from the collections of Ber- 

 noulli and Cario, are described as new to science: Plalanthera guatemalensis , Habenaria 

 dipleura, H. latipetala, H. quinquefila, H. spithamaea, Pogonia debilis, Ponlhieva pulchella, 

 Pelexia guatemalensis, Spiranthes pulchra, Physurus humidicola, P. luniferus, P. trilobulatus , 

 Microstylis acianthoides , M. lepanthi flora, Masdevallia guatemalensis, Stelis Bernoulii, S. 

 Carioi, S. cleistogama, S. oxypetala, S. tenuissima, Pleurothallis Bernoullii, P. Carioi, 

 P. lamprophylla, Epidendrum aberrans, E. lucidum, E. piestocaulos , E. verrucipes, Notylia 

 guatemalensis, Leochilus major, Ornilhocephalus tripterxis. Decas LIV. ibid. 210-217. — 

 Caloglossum, a new genus of Madagascar orchids is described and to it are assigned the 

 following new and transferred species: C. flabellatum (Limodorum flabellatum Thou.), C. 

 Humblotii (Cymbidium Humblotii Rolfe), C. magnificum, C. rhodochilum (Cymbidium rhodo- 

 chilum Rolfe). Additional new combinations in other genera are proposed as follows: Pla- 

 tanthera Komarovii, Chloraea reticulata, Stelis ovatilabia, Dendrobium Casuarinae, Otostylis 

 paludosa (Zygopetalum paludosxim Cogn.), Oncidium Spegazzinianum (Leochilus Spegazzini- 

 anus Kranzl.), O. Waluewa (Waluewa pulchella Regel), Solenidium mattogrossense (Leochilus 

 ?natlogrossensis Cogn.), Erycina diaphana (Oncidium diaphanum Rchb. f.), Pachyphyllum 

 muscoides (Orchidotypus muscvides Kranzl.), P. cyrtophyllum (P. falcifolium Schltr.). — E. 

 B. Payson. 



1053. Schlechter, R. Orchidaceae novae et criticae. Decas LV-LVII. Rep. Sp. Nov. 

 15: 324-340. 1918. — The following new species and varieties of Madagascan orchids are de- 

 scribed: Benthamia elata, Habenaria Ferkoana, Cynosorchis diplorhyncha, C. Laggiarae, C. 

 Laggiarae var. ecalcarala, Dispersis Afzelii, Goodyeara Afzelii, Plalylepis margaritifera, 

 Bulbophyllum Afzelii, B. brachyphyton, B. Ferkoanum, B. Laggiarae, B. melanopogon, B. 

 mirificum, B. sarcorhachis, B. xanthobulbum, Lissochilus Laggiarae, Gussonea auranliaca, 



