335 
lateralibus satis longioribus, late oblongis, abrupte acutis, 
inferne circiter usque ad medium connatis; petalis ovato- 
panduratis, apice rotundatis et leviter emarginatis, margine 
satis undulatis, basi abrupte breviterque attenuatis, subtiliter 
5-nervulosis, sepalo dorsali paulo longioribus; labello patenti- 
deflexo, sepalis lateralibus multo longiore, sessili, utrinque 
glaberrimo, basi truncato-subcordato, profunde trilobato, lobis 
basilaribus minutissimis, vix retrorsis, oblongo-spathulatis, 
apice subrotundatis, margine valde undulatis, lobo terminali 
amplo, breviuscule angusteque unguiculato, obtuse reniformi- 
quadrangulo, non plicato, basi leviter emarginato, apice pro- 
funde angusteque emarginato, margine leviter undulato, sinubus 
inter lobos latis et profundis fundo rotundatis, disco basi 
crasse cristato, crista antice producta, medio interrupte callosa, 
utrinque tuberculis linearibus patentibus munita; columna 
brevi, satis gracili, glabra, alis anticis, latiusculis, subeuneato- 
quadrangulis, margine antice sinuato-denticulatis; anthera satis 
convexa, laevi, superne leviter sulcata et angustissime cristata, 
antice acuta. 
Tabula nostra LXXVI. Fig. I (habitus cum analysi). 
Oncidium bifolium Sims! in Bot. Mag. tab. 1491 (1812); 
Spreng. Syst. Veget. III. 728; Lodd. Bot. Cab. tab. 1845; 
Lindl. Gen. and Spec. Orch. 197, Folia Orch. 23; Drapiez, 
Encyclogr. Regn. Végét. I. Oncid. n. 3 cum tab. col.; Mutel, 
Mem. sur Plus. Orch. II. 18; Beer, Prakt. Stud. Fam. Orch. 
282; Duchartre, Man. Gén. des Pl. IV. 488; Du Buyss. 
L'Orchid. 417; Griseb. Symb. FI. Argent. 337; Nichols. Dict. 
of Gard. II. 484; Kraenzl. in Engl. Bot. Jahrb. IX. 315; 
Stein, Orchideenb. 406; Veitch, Man. Orch. Pl. IX. 14 cum ic.; 
Bois, Orch. 149; Williams, Orch. Grow. Man. edit. 7. p. 601; 
Sander, Orch. Gwide 174. 
Coppensia bifolia Dumort. in Mem. Acad. Brux. IX. 
Maelen. 10, in adnot. (1835). 
Oncidium Batemanianum Griseb.! Symb. Fl. Argent. 337 
(1879, — non Knowl. et Westc.). 
RADICES numerosissimae, dense fasciculatae, elongatae, satis graciles, 
satis flexuosae, canescentes, simplices vel interdum paulo ramosae. PsEUDO- 
BULBI aggregati, erecti vel patuli, satis obliqui vel subrecti, primum laeves, 
demum profundiuscule plurisuleati, nitidi, intense virides, 3—4 em. longi, 
1—2 em. crassi. FoLIA rigidiuscula, erecta vel patula, basi breviter sub- 
conduplicata, superne leviter concava vel subplana et saepius paulo recurva, 
supra intense viridia, subtus paulo pallidiora, 6—12 cm. longa, 6—14 mm. 
lata; nervo mediano supra profundiuscule canaliculato, subtus satis pro- 
minente; nervulis lateralibus numerosis, tenuissimis, PEDUNCULUS com- 
munis saepius satis arcuatus, superne leviter geniculato-flexuosus, teretius- 
eulus vel leviter compressus, laevis, glauco-viridis, 20—35 cm. longus, 
1—2 mm. crassus; VAGINAE arcte adpressae, pallidae, 4—6 mm. longae. 
PEDICELLI patuli, subfiliformes, leviter vel satis arcuati, cum ovario lineari 
obscure trigono 1'/:—2 cm. longi. BRACTEAE adpressae, satis concavae, 
pallide virides, 3—5 mm. longae. Frores nutantes, sepalis petalisque 
pallide flavis, fusco-purpureo maculatis vel transverse zonatis. SEPALA 
leviter concava, subtiliter 3—5-nervulosa, dorsale 6—6'/2 mm. longum et 
4—4!/a mm. latum, lateralia 9 mm. longa, 3—3'/» mm. lata, superne valde 
divergentia. PETALA patula, superne saepius leviter recurva, paulo convexa 
vel subplana, vix obliqua, 7—7'/2 mm. longa, 5—6 mm. lata. LABELLUM 
tenuiter membranaceum, laete luteum, 18—20 mm. longum, lobis basi- 
laribus 3—3'/2 mm. longis, 1'/2—2 mm. latis, lobo terminali subplano, 
tenuiter 7-nervuloso nervulis satis ramosis, 14—16 mm. longo, 2—2'/2 em. 
lato. CoLumna subrecta, pallide flava, 4—5 mm. longa, alis 2 mm. latis. 
CAPSULA ignota. 
ORCHIDACEAE: 
ONCIDIUM. 336 
Var. 8. masus Hort.; Williams, Orch. Grow. Man. edit. 6. 
p. 476 (1885), edit. 7. p. 601; Stein, Orchideenb. 406; Sander, 
Orch. Guide 175. | 
PLANTA tota robustior. FLORES majores, duplo numerosiores, sepalis 
petalisque fuscis, leviter flavo-variegatis. 
Habitat in Uruguay prope Montevideo: Tweedie, Gibert n. 794; 
in arboribus ad monte Arazati prope San José: Arechavaleta m. 2616; 
ad Concepcion del Uruguay: Lorentz n. 495; in Argentina supra arbores 
ad San Andres, in Sierra de Tucuman ad Juntas prope Siambon, ad 
Las Capillitas prope Jugui: Lorentz et Hieronymus n. 452, 915 et 981; 
secus flum. Parana ad Iribucua prope Corrientes : d'Orbigny n. 150. 
In Brasilia australi forsan adhuc invenienda. — Var. B. In Argentina 
ad Altos de Las Salinas: Lorentz n. 315. — Floret Novembri— Aprili. 
39, ONCIDIUM DASYTYLE Rzicur. F. pseudobulbis 
satis parvis, ovoideis, valde compressis ancipitibusque, juni- 
oribus vaginis paucis mediocribus tenuiter membranaceis vel 
interdum subfoliaceis vestitis, vetustioribus plus minusve denu- 
datis, apice diphyllis rarissime monophyllis; foliis mediocribus, 
satis coriaceis, non conduplicatis, oblongo-ligulatis, apice acutis 
vel acutiusculis, basi satis attenuatis; pedunculo communi 
erecto vel subnutante, gracili, simplici vel rarius vix ramoso, 
foliis duplo vel triplo longiore, inferne vaginis 2—3 brevis- 
simis submembranaceis remotissimis acutisque vestito, apice 
laxe paucifloro; bracteis membranaceis, triangulari-linearibus, 
acuminatis, ovario multo brevioribus; floribus majusculis, lon- 
giuscule pedicellatis, sepalis petalisque membranaceis, patulis; 
sepalis elliptico-lanceolatis, acutis, lateralibus paulo longioribus 
et angustioribus, inferne circiter usque ad medium connatis; 
petalis late elliptico-lanceolatis, acutis, margine vix undulatis, 
tenuiter 5-nervulosis nervulis leviter clathrato-ramosis, sepalo 
dorsali aequilongis; labello patenti-deflexo, sepalis lateralibus 
paulo longiore, basi cuneato-unguiculato, utrinque subtiliter 
puberulo, leviter trilobato, lobis basilaribus minutissimis, 
auriculiformibus, late triangularibus, acutiusculis, margine 
integerrimis, lobo terminali amplo, subsessili, late reniformi- 
subsemirotundato, basi leviter cordato, apice paulo emarginato, 
margine satis undulato-subcrenulato, sinubus inter lobos parvis 
rotundatis, disco inferne fere usque ad medium calloso, callo 
carnoso, velutino, anguste oblongo-clavato, ad medium utrinque 
in earina angulato, apice emarginato-cordato; columna brevius- 
cula, claviformi, densiuseule puberula, alis anticis, latis, late 
subcuneato-quadrangulis, margine antice integerrimis vel leviter 
undulatis; anthera satis convexa, subtiliter furfuraceo-puberula, - 
apice obscure suleata, antice obtusiuscule producta. 
Oncidium dasytyle Reichb. f. in Gard. Chron. 1873. p. 253 
et 432; Hook. f. in Bot. Mag. tab. 6494; Belg. Hort. 1881. 
p. 236; Nichols. Dict. of Gard. II. 485 (0. dasystyle); 
L'Orchidoph. 1885. p. 55; Journ. of Hort. 1987. I. 496. fig. 58; 
Walson, Orch. 373; Stein, Orchideenb. 411; Veitch, Man. Orch. 
PI. VIII. 33; Bois, Orch. 153; Williams, Orch. Grow. Man. 
edit. 7. p. 608 cum ic.; L. Lind. Orch. Exot. 895; The Garden 
1898. II. 17; Sander, Orch. Guide 178. 
RADICES satis numerosae, fasciculatae, breviusculae, graciles, simplices, 
canescentes. PsEUDOBULBI aggregati, erecti vel erecto-patuli, leviter obliqui, 
primum laeves, demum profundiuscule multisulcati, nitidi, intense virides 
et interdum dilute fusci, 3—4!/a em. longi, 2—2'/2 em. lati. FOLIA 
