wees. 
PLEUROTHALLIS. (12) SICARIA. 
2. Petula linearia nana. 
3. P. cardiostola (Rchb. £. in Bonplandia, Jan. 15, 1854. Xenia, i. 72, t. 
hs fala tenui lato oblongo acuminato cordato demum inverso caule wnbasi 
gulato reviore, spatha bivalvi obovata, se alis 9 obtusis concavis parim ine- 
v: i oO equi i 
owers and a vi in leaf”; his 1479 “brown flowers, with the 
upper surface of = minutely warty ;” the first seems to be an old i of 
the second, whe me specimens the dorsal sepal has 3 veins, in other 
54. P, se miscabra (Lindl. in ages Linden, No. 11); f blongo 
acuminato maturo caule breviore, sepalo do rsali ios! antico ph od petalis 
esa ca abi eucullatis, ‘labelio: nano cordato eye inferits levi 
dimidia superiore nezuela, Linden, 669. sp.——Several 
Bpecies = the fi sicicolese Macrophyls are so much alike th oy if it were not for 
the different structure of their flowers they would be considered identical. 
— a —— is extremely like paligaans Se ntata, and scabrilinguis, 
though quite peculiar in its petals, sepals, a 
§ IV. Srcarrm; caule alato y. ancipiti, foliis coriaceis v. carnosis. 
*,* These must be carefully yer from the Aggregatz, to which many approach 
altogether in habit. The > winged most com monly fiat stem is the essential 
mark of the section; all habit with merel will 
be found among either py secnecta or r ienaavasonier See also P. crocudilice ps. 
The following characters are scarcely more rear ige differential, but are quite 
sufficient for idéntification. 
1, Labellum auriculatum. 
55. P. harpophylla (Rehb. f in Bonplandia, | Dee. 1, 1854); prorepens, 
obtuso lateralibus liberis apiculatis meatpabseseedibas ge tis labello 
ovato auriculato serrulato bilamellato—Ocaiia, Wagener; Venezuela, Fendler, 
2445. Suassnphrewich whack: wecblie: upedlin, te readily known by i Se eynatlens 
3 an rt channelled winged stems, 
= * Labellum basi fimbriatum. 
inc dl. in B. Reg. 1839, tise. 1); sepalis pubescentibus, 
integris, labello hastato retuso basi fimbriato apice serrulato 
/¢.———Flowers sea-green, with a few purple spots at 
erbert. LO. 7. Bot. Reg. t. 1298. B. Mag. t. 3261); 
; lineari-lanceolatis sursum serratis, labello_ovali 
