461 ORCHIDACEAE: PROMENAEA. 462 
b. Labelli crista antice margine longe fimbriata 
2. Pollinia 2 
II. Labellum cum parte basilari columnae continuum, non articulatum; columna 
apoda 
CXXXII. PROMENAEA Lor. 
PROMENAEA Lindl. in Bot. Regist. XXIX. Misc. p. 13 (1843); 
Pfitz. in Engl. und Prantl, Natürl. Pflanzenfam. II. 6. p. 204; 
Watson, Orch. 430; Stein, Orchideenb. 531; Kerch. Livre des 
Orch. 272; Williams, Orch. Grow. Man. edit. 7. p. 690; Rolfe 
in Orch. Rev. XIII. 260 (1905). — ZYGOPETALUM sect. Pro- 
MENAEA Reichb. f. în Walp. Ann. Bot. VI. 658 (1863); FI. 
des Serres XVII. 179; Benth. in Journ. Linn. Soc. Lond., 
Bot. XVIII. 321 (part.), in Benth. et Hook. Gen. PI. III. 
543; L'Orchidoph. 1892. p. 84; Veitch, Man. Orch. Pl. IX. 42; 
L. Lind. Orch. Exot. 995, in Journ. des Orch. V. 132. 
SEPALA subaequalia, libera, patentia, lateralia pedi 
brevi columnae oblique inserta. PETALA sepalis similia. 
LABELLUM ad apicem pedis columnae articulatum, cui 
breviter incumbens mentum breve format, distincte 
trilobatum; lobi laterales angusti, erecti, columnam 
amplectentes, medius explanatus, patens; discus crista 
transversa carnosa lobata vel tuberculis instructus. 
CoLumna carnosa, leviter incurva, semiteres, antice 
plana, exalata vel apice utrinque dente minuto aucta, 
basi in pedem brevem producta; clinandrium obliquum, 
membranaceum.  ANTHERA terminalis, opercularis, in- 
cumbens, dorso convexa, bilocularis; POLLINIA quaterna, 
cerea, obovoidea, compressa, inaequalia, per paria in 
loculis segregata, inappendiculata, anthera dehiscente 
in glandula rostelli sessili. — CAPSULA oblique ovoidea, 
plurieostata, erostris. 
HERBAE epiphyticae, Americae australis tropicae 
imprimis Brasiliae incolae, CAULIBUS in rhizomate brevis- 
simis mox in pseudobulbum distinctum carnosum ovoideum 
compressum |. 1 — 3 - foliatum incrassatis. FOLIA satis 
parva, membranacea, leviter plicato-venosa. SCAPI flori- 
feri aphylli, paucivaginati, saepissime uniflori et foliis 
breviores. FLORES majusculi, speciosi. 
CONSPECTUS SPECIERUM BRASILIENSIUM. 
I. Pedunculus uniflorus rarius biflorus; labellum inferne trilobatum. 
A. Labelli lobus terminalis plus minusve Jatior quam longus. 
1. Labelli lobi laterales apice obtusi vel rotundati, lobus terminalis 
apice rotundatus vel leviter retusus. 
a. Sepala petalaque acuta; labellum basi rotundatum, crista supra 
carinata, antice emarginata vel dentata. 
1’. Pedunculus saepius pendulus, foliis multo 
brevior; labellum apice rotundatum, crista 
antice emarginata . . . . 1. P. STAPELIOIDES Lindl. 
94 Pedunculus saepius ascendens, foliis paulo 
brevior; labellum apice subtruncato-retusum, 
crista antice 3—5-dentata . 2. P. XANTHINA Lindl. 
Orchid. III. 
CXXXV. HUNTLEYA Baren. 
CXXXVI. CHEIRADENIA Lino. 
CXXXVII. CHAUBARDIA Recas. F. 
b. Sepala petalaque acuminata ; labellum basi late 
cuneatum, crista supra callosa, antice truncata 
obscure trilobata . . . . . 3. P. currara Reichb. f. 
2. Labelli lobi laterales acuti vel obtusiusculi, lobus 
terminalis acutus vel apiculatus . 4. P. RoLLissox1i Lindl. 
B. Labelli lobus terminalis multo longior quam latus. 
1. Labelli lobus terminalis elongatus, lanceolatus 
5. P. microprera Reichb. f. 
2. Labelli lobus terminalis ovatus vel ovato-oblongus, obtusus. 
a. Bracteae ovato-lanceolatae, acuminatae; labellum 
sepalis lateralibus satis brevius, lobo terminali 
apice subrotundato, basi paulo constricto, crista 
antice tridentata; columna labello dimidio brevior 
6. P. LENTIGINOSA Lindl. 
b. Bracteae late ovatae, acutae; labellum sepalis 
lateralibus aequilongum, lobo terminali apice 
abrupte obtusiusculo, basi valde constricto, crista 
antice truncata et emarginata; columna labello 
aequilonga . . . . . . . . T. P. ovaTiLOBA Cogn. 
II. Flores racemosi; labellum ad medium trilobatum 
8. P. FLORIDA Reichb. f. 
1. PROMENAEA STAPELIOIDES Lmopr. pseudo- 
bulbis parvis, ovoideis, satis compressis, demum acutiuscule 
tetragonis, basi vaginis paucis majusculis foliaceis vestitis, 
apice mono—diphyllis interdum triphyllis; foliis mediocribus, 
tenuiter membranaceis, lanceolato-ligulatis vel lanceolato- 
oblongis, apice acutissimis, inferne longe attenuatis interdum 
fere petiolatis; pedunculo gracili, patulo vel pendulo, unifloro 
vel rarius bifloro, foliis multo breviore, inferne vaginis 1—2 
brevibus ovato-lanceolatis breviter acuminatis vestito; bracteis 
ovatis, acutis, cucullatis, ovario paulo brevioribus; floribus 
majusculis, breviuscule pedicellatis, segmentis patulis, carno- 
sulis; sepalis subaequilongis, anguste ovatis, acutis; petalis 
anguste obovatis, subabrupte acutis, inferne satis attenuatis, 
tenuiter 7—9-nervulosis nervulis simplicibus, sepalo dorsali 
paulo brevioribus; labello inferne erecto superne patulo fere 
recurvo, sepalis lateralibus paulo breviore, sessili, ambitu late 
orbiculari, basi subrotundato, inferne profunde trilobato, lobis 
margine integerrimis, basilaribus erectis, elongatis, ligulatis, 
obtusis, lobo terminali amplo, late suborbiculari, apice rotun- 
dato, basi abrupte satis constricto, crista transversa, carnosa, 
flexuosa, ad medium latiuscule carinata, antice profundiuscule 
emarginata; columna longiuscula, leviter incurva, semitereti, 
dorso obscure carinata; anthera satis convexa, superne postice- 
que leviter sulcata, antice obtusa. 
Tabula nostra XCV. Fig. I (habitus cum analysi). 
Promenaea stapelioides Lindl.! in Bot. Regist. XXIX. 
Misc. p. 13 (1843); Beer, Beitr. Morph. und Biol. Orch. tab. 3. 
fig. 11, tab. 5. fig. 9* et 11; Gard. Chron. ser. 3. VI. 42 (1889); 
Watson, Orch. 433; Stein, Orchideenb. 531; Journ. des Orch. 
IV. 188, V. 132; Williams, Orch. Grow. Man. edit. 7. p. 691; 
L. Lind. Orch. Exot. 995; Cogn. in Dict. Ic. Orch., Promen. 
tab. 1; Rolfe in Orch. Rev. XIII. 261. 
59 
