343 ORCHIDACEAE: 
undulatis, basilaribus parvis, patentibus, anguste ligulatis, 
apice rotundatis leviter dilatatis, margine tenuiter ciliatis, 
terminali amplo, breviuscule lateque unguiculato, obtuse late- 
que triangulari-reniformi, basi subtruncato, apice angustissime 
profundeque emarginato, sinubus inter lobos latis, disco inferne 
oblongo-cristato, cristae tuberculis duobus maximis acutis 
divergentibus a fronte, duobus posticis lateralibus obtusis; 
columna brevi, crassiuscula, subtiliter puberula, clinandrio 
profunde cucullato, marginibus latis, tenuiter membranaceis, 
plicato-crenulatis ciliatisque, alis longiusculis, patenti-sub- 
deflexis, ligulatis, apice rotundatis, margine tenuiter ciliatis; 
anthera valde convexa, subtiliter puberula, antice obtuse 
tridentata. 
Oncidium amictum Lindl. in Bot. Regist. XXXIII. tab. 66 
(1847), in Gard. Chron. 1848. p. 287, Folia Orch., Oncid. 19; 
Otto et Dietr. Allgem. Gartenz. XVI. 38 (1848); Ann. de Gand 
IV. 63; Portef. des Hortic. II. 159; Beer, Prakt. Stud. Fam. 
Orch. 281; Reichb. f. in Walp. Ann. Bot. I. 788, VI. 728; 
Gartenfl. 1881. p. 163; Stein, Orchideenb. 404 (0. amiclum). 
RADICES fasciculatae, longiusculae, graciles, satis flexuosae, canes- 
centes, leviter ramosae, PsguDoBULBI leviter aggregati, erecti vel erecto- 
patuli, leviter arcuati, superne longiuscule attenuati, intense virides, primum 
laeves, demum leviter paucisuleati, 5—7 cm. longi, 12—20 mm. lati. FoLia 
patula vel erecto-patula, superne plus minusve recurva, basi breviter sub- 
conduplicata, superne paulo concava, supra saturate viridia, subtus satis 
pallidiora, 10—13 cm. longa, 3—4 cm. lata; nervo mediano supra pro- 
fundiuscule canaliculato, subtus valde prominente; nervulis lateralibus 
utrinque 4—5, gracillimis. PeDUNCULUS communis satis flexuosus, teretius- 
culus, laevis, intense viridis et sordide fusco-maculatus, 25—30 cm. longus, 
2'/ mm. crassus, ramis erecto-patulis, breviusculis, gracilibus, flexuosis, 
simplicibus; VAGINAE adpressae, pallidae, 1—1'/a cm. longae. PEDICELLI 
patuli, graciles, leviter flexuosi vel arcuati, cum ovario lineari-clavato 
acutiuscule trigono 10—12 mm. longi BRACTEAR carnosulae, adpressae, 
satis concavae, intense virides, 2—4 mm. longae. FLoRes patuli, segmentis 
luteis, plus minusve dense purpureo-fusco maculatis. SEPALA satis concava, 
dorsale tenuiter 7-nervulosum, 15—16 mm. longum, 11—12 mm. latum, 
lateralia subtiliter 5-nervulosa, in valvam 13—14 mm. longam 7 mm. latam 
connata. PETALA paulo concava vel subplana, leviter obliqua, 16—18 mm. 
longa, 8—10 mm. lata. LABELLUM 17—18 mm. longum, lobis basilaribus 
circiter 3 mm. longis et 1'/1—2 mm. latis, lobo terminali plano vel paulo 
convexo, tenuiter multinervuloso, 10—11 mm. longo, 15—17 mm. lato. 
“CoLumna flava, vix incurva, claviformis, 4 mm. longa, alis purpureis, 2 mm. 
longis. ANTHERA alba. CarsuLa ignota. 
Habitat in Brasilia loco accurato haud indicato: Loddiges. — 
Floret Martio— Maio. 
44. ONCIDIUM CORNIGERUM Lor. pseudobulbis 
mediocribus, anguste oblongis, satis compressis, junioribus basi 
vaginis paucis brevibus scariosis adpressis ovato-triangularibus 
acutisque vestitis, vetustioribus denudatis, apice monophyllis 
vel rarius diphyllis; foliis mediocribus, coriaceis, elliptico- 
oblongis, apice acutis vel acutiusculis, basi breviter attenuatis; 
pedunculo communi leviter nutante vel pendulo, gracili, foliis 
multo longiore, inferne simplici vaginis pluribus brevibus 
tenuiter membranaceis remotissimis acutisque vestito, superne 
Satis ramoso et densiuscule multifloro; bracteis triangulari- 
ovatis, acutis, ovario multo brevioribus; floribus satis parvis, 
-breviuscule pedicellatis, segmentis tenuiter membranaceis ; 
sepalis subaequilongis, dorsali erecto, anguste obovato, apice 
‘rotundato-subtruncato vel retuso, lateralibus patulis, oblongis, 
ONCIDIUM. 344 
obtusis, basi plus minusve connatis; petalis patulis superne 
leviter incurvis, obovatis, basi cuneatis, apice rotundatis vel 
leviter emarginatis, margine leviter undulatis, subtiliter 
5-nervulosis nervulis paulo ramosis, sepalo dorsali aequilongis; 
labello patenti-subdeflexo, sepalis lateralibus paulo longiore, 
ambitu obovato, basi breviter angusteque unguiculato, utrinque 
glaberrimo, inferne profunde trilobato, lobis margine integer- 
rimis vix undulatis, basilaribus longiusculis, patentibus, an- 
guste linearibus, non ciliatis, apice obtusis non dilatatis, 
terminali majusculo, longiuscule angusteque unguiculato, latis- 
sime obovato vel reniformi, basi subtruncato, apice leviter 
emarginato, sinubus inter lobos latis subrectangulis, crista 
antice verrucosa truncata, postice lamella crenata transversa 
cornuta; columna brevi, gracili, subtiliter puberula, clinandrio 
profunde cucullato, marginibus membranaceis postice productis, 
alis longiusculis, antice porrectis, linearibus, obtusis; anthera 
valde convexa, subtiliter papillosa, antice minute acuteque 
tridenticulata. 
Tabula nostra LXXIV. Fig. II (habitus cum analysi). 
Oncidium cornigerum Lindl.! in Bot. Regist. XVIII. 
tab. 1542 (1832), Gen. and Spec. Orch. 199, Folia Orch., 
Oncid. 18; Hook. in Bot. Mag. tab. 3486; Drapiez, Encyclogr. 
Regn. Végét. IV. Mai 1836 (Bot. Mag.) fig. 1; L'Hortic. Belg. 
111. 168; Beer, Prakt. Stud. Fam. Orch. 283; Reichb. f. in 
Walp. Ann. Bot. VI. 727; Du Buyss. L Orchid. 419; Nichols. 
Dict. of Gard. II. 484; Watson, Orch. 369; Stein, Orchideenb. 
418; Veitch, Man. Orch. Pl. VIII. 26; Bois, Orch. 152; 
Williams, Orch. Grow. Man. edit. 7. p. 605; Sander, Orch. 
Guide 177. 
Oncidium chrysorhapis Reichb. f. in Gard. Chron. ser. 3. 
III. 72 (1888); L'Orchidoph. 1888. p. 199; Gard. World 1890. 
p. 748 (0. rhizorrhapis) ; Williams, Orch. Grow. Man. edit. 7. 
p. 604; Kew Bull, Add. Ser. IV. 297 (0. chrysorhaphis); 
Nichols. Dict. of Gard., Suppl. 564; Sander, Orch. Guide 176 
(0. chrysoraphis). 
RADICES numerosae, dense fasciculatae, elongatae, subfiliformes, 
leviter flexuosae, simplices, canescenti-cinereae. PsEUDOBULBI erecti vel 
erecto-patuli, recti vel leviter arcuati, primum laeves, demum leviter multi- 
sulcati , nitidi, intense virides, 5—8 cm. longi, 1—2 cm. lati. FoLia 
patula vel erecto-patula, rigidiuscula, basi breviter subconduplicâta, superne 
paulo concava, supra intense viridia, subtus satis pallidiora, 7—15 cm. 
longa, 1'/»—4 cm. lata; nervo mediano supra profunde canaliculato, subtus 
satis prominente; nervulis lateralibus numerosis, gracilibus, in sicco utrin- 
que tenuiter prominentibus. PEDUNCULUS communis satis arcuatus vel 
flexuosus, teretiusculus, laevis, pallide viridis et, obscure purpureo-macu- 
latus, 35—60 cm. longus, 1—2!/ mm. crassus, ramis patulis, gracilibus, 
breviusculis, leviter geniculato-flexuosis, simplicibus vel rarius leviter 
ramulosis; VAGINAE arcte adpressae, laeves, pallidae, 4—6 mm. longae. 
PEDICELIA patuli, filiformes, leviter arcuati, cum ovario lineari-clavato 
acutiuscule trigono 6—8 mm. longi. BRACTEAE patulae, tenuiter mem- 
branaceae subpellucidae, valde concavae, circiter 2 mm, longae. FLORES 
patuli vel nutantes, sepalis petalisque laete luteis, tenuiter purpureo-fusco 
punctatis vel transverse striatis. SEPALA inferne longe attenuata, 8—9 mm. 
longa, dorsale valde concavum, tenuissime 5-nervulosum, superne 5 mm. 
latum, lateralia leviter concava, subtiliter trinervulosa, 3—3'/2 mm. lata, 
superne satis divergentia. PETALA leviter concava, paulo obliqua, 8—9 mm. 
longa, superne 5—6 mm. lata. LABELLUM laete luteum, 9—11 mm. longum, 
lobis basilaribus 2—21/2 mm. longis, */s mm. latis, lobo terminali subplano, 
subtiliter plurinervuloso, 5—6 mm. longo, 7—8 mm. lato. CoLumnA sub- 
= claviformis, lutea, 4—5 mm. longa, alis 1'/2—2 mm. longis. CAPSULA 
ignota. i 
