Orchidaceae. 409 
Pleurothallis Morrisii Fawe. et Rendle in Journ. of Bot. XLVII 
(1909) p. 3, Orch. of Jam. ined. 1.9 f. 1-4. 
Hab. in Jamaica: D. Morris n. 28 (teste Fawe. et Rendle). 
131. Pleurothallis odontotepala Rchb.f. dense aggregata; cauli- 
bus aneipitibus, folio longioribus, bi—trivaginatis, vaginis apice’acutis; 
folio oblongo, acuminato, angustato, apice bidentato; racemo abbreviato, 
bifloro, e spatha triangula parva; bracteis triangulo-navieularibus, 
pedicellos subaequantibus; sepalo summo triangulo, inferiori ovato. 
acuto bidentato; petalis falcatis, margine superiore apicem versus 
unidentatis; labello ab ungue medium versus hastato, apicem retusum 
versus subito attenuato, apice serrulato; columna elongata, gracili. 
Pleurothallis odontotepala Rehb.f. in Flora (1865) p. 275; Griseb. 
Cat. p. 258; Sauv. Fl. Cub. p. 225. 
Hab. in Cuba: Wright n. 3349 ex Rehb(f. 
E. Caespitosae Cogn. in Mart. Fl. Bras. III. 4 (1896) p. 476. — 
Spec. 132 — 139. 
132. Pleurothallis rotundifolia Rolfe: nana, caespitosa; petiolo 
2—4 mm. lato; folio orbiculari-obovato, carnoso, apice minutissime 
tridenticulato, marginato, 6—8 mm. longo, 5—7 mm. lato; pedunculo 
communi gracillimo, eireiter 6-floro, 4—4!/, em. longo; pedicellis 
4 mm. longis; bracteis basi tubulosis, apice triangulari-ovatis, acutis, 
1 mm. longis; sepalis acutis, dorsali oblongo, concavo, 4 mm. longo, 
lateralibus oblongis, fere omnino connatis apice brevissime bidentatis, 
41/, mm. longis; petalis spathulato-oblongis, subobtusis, 11/, mm. longis; 
labello subrecurvo, integro, oblongo, obtuso, 1!/, mm. longo; columna 
clavata, EN alatis, apice acuta, 1 mm. longa. 
- Pleurothallis rotundifolia Rolfe in Kew Bull. (1895) p. 191, in 
Orch. Rev. III p. 306; Fawe. et Rendle Orch. of Jam. ined. t.8 f.11—16. 
Flores straminei, sepalo dorsali lineis 3 purpureis ornato, labello in- 
ferne rubro-purpureo. 
Hab. in Jamaica: Morris. 
133. Pleurothallis Grisebachiana Cogn. (n. sp.): nana, caespi- 
tosa, glaberrima; caulibus brevissimis, filiformibus, teretiuseulis, prope 
basin uniartieulatis; folio submembranaceo, anguste oblongo-subspathu- 
lato, apice obtuso vel subrotundato et tenuissime tridenticulato, basi 
in petiolum longiusculum insensim angustato, marginato; pedunculo 
communi“solitario, capillari, usque ad medium sparse plurifloro, folio 
multo longiore, basi spatha brevissima incluso; bracteis tubulosis, 
superne dilatatis, apice oblique truncatis et breviter apiculatis,-pedi- 
cellis multo brevioribus; floribus distichis, longiuscule pedicellatis, 
segmentis pellueidis; sepalis lineari-oblongis, uninervulosis, non eari- 
