253 ORCHIDACEAE: ODONTOGLOSSUM. 254 
sepalis lateralibus satis breviore, triangulari-lanceolato, longe 
acuminato, basi subhastato, margine satis undulato subdenti- 
culato, supra tenuiter puberulo, disco basi bicalloso, callis 
elevatis, pubescentibus, subtrilobis; columna breviuscula, satis 
gracili, claviformi, alis elongatis, subulatis, cirrhiformibus, 
ascendenti-patulis, basi antice minute denticulatis. 
Odontoglossum naevium Lindl. in Paxt. Flow. Gard. I. 87. 
tab. 18 (1850), Folia Orch. 2 (excl. var. B); J. E. Planch. in 
Fl. des Serres VI. 191. tab. 594; Linden, Pescat. tab. 13; 
Warner, Select. Orch. I. tab. 7 (excl. syn.); Reichb. f. in 
Bonpland. II. 278, III. 66, in Walp. Ann. Bot. III. 560, 
VI. 825; Batem. Monogr. Odont. tab. 9; Regel in Gartenfl. 
1874. tab, 791; Du Buyss. L'Orchid. 406; Nichols. Dict. of 
Gard. II. 474; Watson, Orch. 354; Stein, Orchideenb. 391; 
Veitch, Man. Orch, Pl. I. 51 cum ic.; Bois, Orch. 178; 
Williams, Orch. Grow. Man. edit, 7. p. 579; Autran et Dur. 
Hort. Boiss. 328; Sander, Reichenbachia ser. 2. I. 95. t. 44, 
Orch. Guide 160. 
PSsEUDOBULBI leviter aggregati, erecti, paulo obliqui, intense virides, 
nitidi, 4—7 cm. longi, 2—4'/s cm. lati. FoLia erecto-patula, superne 
paulo recurva, basi valde concava fere conduplicata, superne leviter con- 
cava vel subplana, supra intense viridia et nitidula, subtus paulo pallidiora, 
20—35 cm. longa, 1—2 cm. lata; nervo mediano supra profunde canali- 
eulato, subtus valde prominente; nervulis lateralibus paulo distinctis, 
PEDUNCULUS communis nutans, satis arcuatus, teretiusculus, laete viridis, 
rarius vix ramosus, 30—40 cm. longus, 1'/2—2 mm. crassus; VAGINAE 
tenuiter membranaceae, arcte adpressae, pallidae, 5—7 mm. longae. PEDI- 
ceLLI patuli vel erecto-patuli, gracillimi, recti vel paulo arcuati, pallide 
virides, cum ovario 2—2'/2 cm. longi. BRACTEAE adpressae, valde con- 
cavae, pallidae, 3—5 mm. longae. FLoRES patentes, segmentis membrana- 
ceis, patentissimis, apice satis recurvis, albis et densiuscule minuteque 
fusco-purpureo maculatis, SEPALA tenuiter trinervulosa, basi satis con- 
stricta, 5—7 mm. lata, dorsale 3—3"/s em. longum, lateralia leviter obliqua 
31/2—4 cm. longa. PETALA satis obliqua, tenuiter 8—5-nervulosa, inferne 
satis attenuata, 3—3!/s cm. longa, 6—8 mm. lata. LABELLUM subtiliter 
plurinervulosum, basi breviter unguiculatum satis concavum, superne 
leviter convexum, circiter 3 cm. longum et 7—9 mm. latum, callis laete 
luteis, CoLuMxA paulo incurva, alba et castaneo-fusco maculata, 9—10 mm. 
longa. CAPSULA ignota. 
Habitat in Guiana anglica ad Demerara: Schomburgk secundum 
Lindley; in Venezuelae prov. Truxillo prope San |Lazaro et La Perna 
altit. 2000 m.: Funck et Schlim m. 721; prope Ocama altit. 1300 m.: 
Wagener; in Nova Granata ad Santa Marta ‘altit. 1700—2000 m.: 
Schlim n. 1202. In Brasilia septentrionali forsan adhuc invenienda. — 
Floret Augusto. 
2. ODONTOGLOSSUM PRAESTANS Retrcus, F. et 
Wansz. pseudobulbis mediocribus, late ovoideis, satis com- 
pressis, primum laevibus, demum leviter multicostatis, basi 
paucifoliatis, apice ut videtur diphyllis; foliis longiusculis, 
satis coriaceis, lineari-lanceolatis, apice acutis, inferne longe 
attenuatis; pedunculo communi robustiusculo, simplici, foliis 
satis longiore, inferne paucivaginato, superne densiuscule 
multifloro; bracteis membranaceis, triangulari-ovatis, acutis 
vel breviter acuminatis, ovario 3—4-plo brevioribus; floribus 
majusculis, breviuscule pedicellatis; sepalis subaequilongis, 
lineari-lanceolatis, longe acuminatis, margine leviter undulatis; 
petalis anguste lanceolatis, longe acuminatis, margine satis 
undulatis, sepalo dorsali satis brevioribus; labello patenti- 
deflexo, sepalis lateralibus satis breviore, ambitu anguste 
Orchid. III, 
oblongo-lanceolato, longe acuminatissimo, leviter trilobato, 
lobis margine leviter undulatis, lateralibus basilaribus, parvis, 
erectis, villosis, lobo terminali anguste triangulari, glabrato, 
disco inferne 4-cristato, cristis cariniformibus, pubescentibus, 
externis superne 2—3-dentatis, mediis satis productis 4—6- 
dentatis; columna longiuscula, satis gracili, claviformi, alis 
apicularibus porrectis, plus minusve laciniatis, laciniis superi- 
oribus elongatis. 
Odontoglossum praestans Reichb. f. et Warsz. ex Reichb. f. 
in Bonplandia II. 99 (1854), III. 66, in Walp. Ann. Bot. 
VI. 827, in Gard. Chron, new ser. IV. 323 (1875); Veitch, 
Man. Orch. Pl. I. 55 in adnot.; Nichols. Dict. of Gardn. 
II. 474; L. Lind. Orch. Exot. 874; Rolfe in Lindenia VII. 71. 
tab. 322, in Orch. Rev. X. 9. fig. 1; Journ. des Orch. VI. 325; 
Lindenia XI. 46; Sander, Orch. Guide 162. 
PSEUDOBULBI aggregati, erecti vel patuli, satis obliqui, nitidi, intense 
virides et atrofusco-marmorati, 4—6 cm, longi, 3—4 cm. lati. Forra 
erecto-patula, superne paulo recurva, basi valde concava fere conduplicata, 
superne subplana, supra saturate viridia et nitidula, subtus paulo 
pallidiora, 15—25 cm. longa, 1'/1—2'/s cm. lata; nervo mediano supra 
profunde canaliculato, subtus valde prominente; nervulis lateralibus indis- 
tiuctis, PEDUNCULUS communis nutans, satis arcuatus, paulo compressus, 
laete viridis, 85—45 cm. longus, 2'/1—3 mm. crassus, PepiceLLI patuli, 
graciles, recti vel paulo arcuati, cum ovario trigono 2—2'/s cm. longi. 
BRACTEAE adpressae, basi amplexicaules, pallidae, margine late scariosae, 
5—8 mm. longae. FLorks patuli, odoratissimi, segmentis membranaceis, 
patentissimis, apice leviter recurvis, pallide flavis et interdum leviter 
dilute viridibus, densiuscule minuteque fusco-maculatis, Seara tenuiter 
5—7-nervulosa nervulis satis reticulato-ramosis, leviter concava, basi 
breviter attenuata, 4—4'/ cm. longa, 6—8 mm. lata, PETALA leviter 
concava, satis obliqua, tenuiter 5-nervulosa nervulis leviter clathrato- 
ramosis, 3'/s—4 cm. longa, 7—9 mm. lata, LaseLium tenuiter pluri- 
nervulosum, leviter concavum, 3—3'/s cm. longum, inferne 10—12 mm. 
latum, apice fuscum, callis albo-flavescentibus.  Corumxa subrecta, albo- 
flavescens, 12—18 mm, longa. Anruena valde convexa, postice subtiliter 
verruculosa, CarsuLa ignota, 
Habitat in Peruvia orientali ad fontes flum. Marañon: Warszewicz; 
in Venezuela prope Ocaña: Wagener. In Brasilia contermina forsan 
adhuc invenienda. 
3. ODONTOGLOSSUM EPIDENDROIDES Kunrn: 
pseudobulbis mediocribus, ovoideo-oblongis, valde compressis, 
sublaevibus, basi paucifoliatis, apice diphyllis; foliis longius- 
culis, subcoriaceis, ligulato-lanceolatis, apice acutiusculis, in- 
ferne longe attenuatis; pedunculo communi robusto, simplici, 
foliis satis longiore, fere usque ad basin laxe plurifloro; 
bracteis membranaceis, ovato-triangularibus, acutis, ovario 
multoties brevioribus; floribus majusculis, longiuscule pedicel- 
latis; sepalis subaequilongis, anguste cuneato-lanceolatis, bre- 
viter acuminatis, margine leviter undulatis; petalis cuneato- 
lanceolatis, acutis, margine superiore erosulo-subcrenulatis vel 
denticulatis, sepalo dorsali subaequilongis; labello sepalis late- 
ralibus satis breviore, longe unguiculato, unguiculo ascendente, 
lineari, per lineam mediam bicarinato, inferne cum columna 
longiuscule connato, limbo refracto, oblongo, apice obtusius- 
culo, margine serrülato, ungue paulo longiore, disco inferne 
calloso, callo fere usque ad medium in dentes duos ancipites 
acutissimos excurrente, interjecto denticulo multo breviori, 
superaddito utrinque callo dentiformi extrorso minuto gemino 
33 
