oblongis subgequalibus leviter carinatis lateralibus basi tantum connaeis, petali* 

 diipio brevioribus apice rotuiulatis, labello breviore membranaceo rliombeo-trilobo 



plica unf'uls transversa.- In Periivia, in pra;cipitiis Pichincha^ baud procul a 



Quito, Jamieson. {exam. s. sp. in hb. Hooker.) P. pulchellee valde similis, sed 

 minor. 



29. P. capillaris : folio lineari-lanceolato racemis capillaribus fasciculatis 

 subajquali, sepalis acuminatis lateralibus basi connatis, petalis fere sequilongis 

 serratis acuminatis, labello lanceolato basi angustato acuto membranaceo 3-venio. 



In Brazilia, in arborum truncis provincise Sebastianop. Martius. {exam, 



s. sp. in hb. M.) Facies P. ruscifolice. 



30. lanceolata. 



31. V. sclerophylla ; folio oblongo petiolato obtuso camoso racemis mul to 

 breviore, bracteis ovatis cucullatis, sepalis acuminatissimis omnibus fere liberis, 



petalis nanis obtusis, labello oblongo conduplicato apice piloso-glanduloso. 



In Brazilia ; in Serra de Piedade, prov. Minarum, etiam in rupibus campestri- 

 bus prov. S. Pauli, Martius. (exam, s, sp. in hb. M.) 



32. P. rubens ; folio oblongo-lanceolato obtuso, racemis longissimis, bracteis 

 oblongis ochreatis, sepalis lanceolatis acuminatis lateralibus basi tantum connatis 

 petalis obtusis, labello obovato repando obtuso lineis 2 elevatis flexuosis carnosis. 



In Brazilia ; in rupibus ad 0pp. S. Joao d' El Rey, Martius. (exam. s. 



sp. in hb. M.) 



§. 3. Caulescentes ; i. e, rhizomate nullo sed caule folioso. 



33. macrorhlza. 34. caulescens. 



Under the name of Stelis tuhata^ Messrs. Loddiges have published 

 a very curious plant with the habit of Pleurothallis, but with its 

 sepals all united into a tube, which is inflated at the base and con- 

 tracted at the mouth. Otherwise its fructification has the structure 

 of Stelis. I propose to distinguish this as a peculiar genus, with the 

 following name and character. 



PHYSOSIPHON. 



Calyx tubulosus basi ventricosus, apice 3-fidus. Petala in fundo calycis 



carnosa, nana. Labellum et columna Stelidis. Pollinia 2, spliaerica. Herbse 



epipliytpe habitu Pleurothallidis. 



1. P. Loddigesii ; ( = Stelis tubata, Lodd. Bat. Cab. t. 1601.) 



2. P. emarginata ; (= Pleurothallis emarginata, LindL Gen. et. Sp. Orch. PI. 



p. 6.) 



3. P. spiralis ; folio anguste oblongo subemarginato carnoso spica spirali con- 



lerta duplo breviore, bracteis minimis ovatis acutis cucullatis, calyce semi- 

 tripartito laciniis erectis acutis, petalis cuneatis carnosis, labello ovato-sub- 



rotundo membranaceo a[)iculato trivenio. In Brazilia, ad Portum S'^\ 



Catharinee, Tiveedie. {hab. s.sp, comm. Ccl. Hooker.) 



