oblongis subequalibus leviter carinatis lateralibus basi tantum cormatis, petalis 
duplo brevioribus apice rotundatis, labello breviore membranaceo rhombeo-trilobo 
plicá unguis transversá. In Peruvia, in precipitiis Pichinche haud procul a 
Quito, Jamieson. (exam. s. sp. in hb. Hooker.) P. pulchellee valdé similis, sed 
minor. 
29. P. capillaris; folio lineari-lanceolato racemis capillaribus fasciculatis 
subaguali, sepalis acuminatis lateralibus basi connatis, petalis feré aguilongis 
serratis acuminatis, labello lanceolato basi angustato acuto membranaceo 3-venio. 
In Brazilia, in arborum truncis provincie Sebastianop. Martius. (exam. 
s. sp. in hb. M.) Facies P.ruscifolie. 
30. lanceolata. 
31. P. sclerophylla ; folio oblongo petiolato obtuso carnoso racemis multó 
breviore, bracteis ovatis cucullatis, sepalis acuminatissimis omnibus feré 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 tantùm connatis 
petalis obtusis, labello obovato repando obtuso lineis 2 elevatis flexuosis carnosis. 
In Brazilia ; in rupibus ad Opp. S. Joao d' El Rey, Martius. (exam. s. 
sp. in hb. M.) 
§. 3. Caulescentes ; i. e. rhizomate nullo sed caule folioso. 
33. macrorhiza. 34. caulescens. 
Under the name of Stelis tubata, 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. | 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, spheerica. -Herbe 
epiphytee habitu Pleurothallidis. 
1. P. Loddigesii ; (=Stelis tubata, Lodd. Bot. Cab. t. 1601.) 
2. P. a (=Pleurothallis emarginata, Lindl. Gen. et. Sp. Orch. Pl. 
p. 6. 
3. P. spiralis ; folio angustě oblongo subemarginato carnoso spicá spirali con- 
fertá duplö breviore, bracteis minimis ovatis acutis cucullatis, calyce semi- 
tripartito laciniis erectis acutis, petalis cuneatis carnosis, labello ovato-sub- 
rotundo membranaceo apiculato trivenio. In Brazilia, ad Portum S*. 
Catharine, Tweedie. (hab. s. sp. comm. Cel. Hooker.) 
