585 



ORCHIDACEAE : MENADENIUM— ERIOPSIS. 



586 











dipliyllis; foliis coriaceis, anguste lanceolatis, acutis vel 

 breviter acuminatis, 5— 7-nerviis, inferne longissime attenuatis 

 fere petiolatis; pedunculo communi nutaiite vel reflexo, gracili, 

 foliis satis breviore, inferne vaginis 1—2 mediocribus sub- 

 foliaceis breviter acuminatis vestito, apice 2— 3-floro vel 

 interdum unifloro; bracteis foliaceis, ovato-lanceolatis, longius- 

 cule acuminatis, ovario dimidio brevioribus; floribus magnis, 

 longiuscule pedicellatis, segmentis patentissimis, apice satis 

 recurvis ; sepalis membranaceis, aequilongis, anguste lanceolato- 

 ligulatis, longissime acuminatis, margine leviter undulatis, 

 lateralibus paulo latioribus; petalis anguste ligulato- lanceo- 

 latis, longe acuminatis, subtortis, margine satis undulatis, 

 sepalo dorsali aequilongis; labello membranaceo, sepalis late- 

 ralibus satis breviore , brevissime angusteque unguiculato, 

 limbo ovato, basi leviter cordato, indiviso, apice longiuscule 

 acuminato, margine integerrimo satis undulato, supra inferne 

 glabro superne subtiliter puberulo; callo in ima basi crasse 

 carnoso, hippocrepiformi, utrinque dilatato, non sulcato, mar- 

 gine antice undulato; anthera dorso longiuscule rostrata. 



Zygopetalum Linden iae Rolfe! in Lindenia VI. 73. tab. 275 

 (1891), in Orch. Rev. II. 270; Gard. Chron. ser. 3. XL 172. 

 fig. 27 (1892); Williams, Orch. Grow. Man. edit. 7. p. 761; 

 L. Lind. Orch. Exot. 990 ; Kew Bull, 1895. App. II. 55, 

 Addit. Ser. 17. 409; Jonrn. des Orch. IL 69, V. 131, 

 VII. 206; Sander, Orch. Guide 253. 



Rhizoma scaudens, robustum, elongatum, leviter flexuosum, radicibus 

 numerosis, dense fasciculatis , longiusculis, satis gracilibus, flexuosis, 

 simplicibus, canescentibus. Pseudobulbi approximati vel subdistantes, 

 erecti vel erecto-patuli, intense virides, nitiduli, jnniores laeves, vetustiores 

 longitudinaliter plurisulcati, demum denudati, 2 1 /* — 4 cm. longi, 2 — 2 1 /* cm. 

 crassi. Folia rigidiuscula, inferne erecta vel erecto-patula valde concava, 

 superne plus minusve recurva leviter concava vel subplana, supra saturate 

 viridia, subtus paulo pallidiora, 15—22 cm. longa, 2—3 cm. lata; nervis 

 crassi usculis, supra leviter impressis, subtus pallidis valde prominentibus; 

 nervulis secundariis satis numerosis, gracillimis. Pedunculcs communis 

 satis arcuatus, teres, laevis, intense viridis, 8 — 12 cm. lougus, l 1 ^— 2 mm. 

 crassus; vaginae subadpressae , membranaceae , pallide virides, circiter 

 2 cm. longae. Pedicelli patuli vel erecto-patuli, graciles, recti vel leviter 

 arcuati, pallide virides, cum ovario albido 3 1 /*— 4 cm. longi. Bracteae 

 valde concavae subvaginantes, teuuiter niultinervulosae, albo-virides, dorso 

 subcarinatae, 2 cm. longae. Flores nutantes, segmentis laete roseis vel 

 albidis et dilute purpureo-vinosis. Sepala leviter concava, basi vix atte- 

 nuata, tenuiter 7-nervulosa, 5 1 /* cm. longa, dorsale 8 mm. latum, laferalia 

 plus minusve divergentia, leviter obliqua, 1 cm. lata. Petala mem- 

 branacea, paulo concava, basi non attenuata, leviter obliqua, sepalo doisali 

 approximata, tenuissime 7-nervulosa, 5 — 572 cm. longa, 8 mm. lata. 

 Labellum patentissimum superne satis recurvum, leviter concavum, album, 

 tenuiter multinervulosum nervulis roseo-purpureis superne satis ramosis, 

 4 cm. longum, 2 x /2 cm. latum, callo dense purpureo-lineato. Columna 

 erecta, paulo incurva, semiteres, apice satis incrassata, alba, antice purpureo- 

 lineata, 2 1 /* cm. longa, alis latis, carnosis, subrotundatis; clinandrium 

 late membrauaceum, margine laciniatum. Capsula perfecta ignota. 



Habitat in Venezuela secus flum. Alto - Orinoco : Bungeroth. In 

 Brasilia septentrionali forsan adhuc invenienda. 



LXXXVI. ERIOPSIS Lindl. 



Eriopsis Lindl. in Bot. Regist. XXXIII. sub tab. 9 et tab. 18 

 (1847); Bot. Zeit. 1847. p. 461; Beichb. /. in Walp. Ann. 

 Bot. I. 782, VI. 662; Beer, PraJct. Stud. Fam. Orch. 248; 

 Du Buyss. L 1 Orchid. ^340; Benth. in Jour n. Linn. Soc. Lond., 



Bot. XVIII 321, in Benth. el Boole. Gen. Pi 111 515; 

 Pfitz. in Engl, und Prantl, Natiirl. Pjlauzmuim. IL 6. p. 171; 

 Stein, Orchidcenb. 247; LOrchidoph. 1892. p. 84; Veilch, Man. 

 Orch. PL IX. 71; Bois f OrcJi. 134; Cogn. in Journ. des Orch. 

 IV. 354; Kerch. Litre des OrcJi. 268; Williams, Orch. Grow. 

 Man. edit. 7. p. 396; 

 Orch. Guide 88. 



XXII. 852 (1S49), in Walp. Ann. Bot. III. 543. 



Sepala aequalia, patentia, libera vol lateralia cuin 

 pedi columnao in mentum brevissime connata. Petala 

 sepalis subsimilia. Labellum pedi columnao affixum, 



L. Lind. Orch. Exot 

 Pskuderiopsis Reichb. 



breviter incumbens, deinde erectum, distincte trilo- 

 batum; lobi laterales lati, erecti, columnam laxe 

 amplectentes , medius parvus, patens, integer vel bilo- 



batus; discus longitudinaliter lamelUtuf. Columna 



longiuscula, semiteres, incurva, non vel vix alata, 

 apice subclavata, basi in pedem breveni producta; 

 clinandrium valde obliquum, integrum vel antice obtuse 

 biangulatum vel breviter bidentatum. Anthkka intra 

 marginem clinandrii opcrcularis, incumbens, valde con- 

 vexa, unilocularis ; pollinia bina, late semiglobosa, 

 bipartibilia, vel quaterna per paria sibimet applicita 

 altero minore, paribus in anthera a latere appositis, 

 inappendiculata, anthera dchiscente glandulae carno- 

 sulae mox squamiformi subquadratae affixa, stipite 



nullo. Capsula ignota. 



HERBAE epiphyticac, Brasiliac septentrional is Peru- 

 viae Guianae et Columbiae incolae, CAULWUS foliatis 

 brevibus demum in pseudobulbos incrassatis. Folia 

 saepius 2, elongata, ampla, plicato-venosa. Scapi e 

 rhizomate longi, erecti, aphylli, paucivaginati. Racemus 

 elongatus, simplex, laxe floribundus , floribus speciosis, 



pedicellatis. Bracteae minutae. 



CONSPECTUS SPECIERUM BRASILIENSIUM. 



I. Bracteae miuutae, acuminatae; labellum sessile, ambitu 

 late ovato-reniforme, lobo intermedio distincte emarginato, 

 disco longe lateque bilamellato .... 1. E. biloba Lindl. 

 II. Bracteae minutissimae, obtusae vel acutiusculae; labellum distincte 

 unguiculatum, ambitu ovato-triangulare, lobo terminali apice truncato 

 vel vix retuso, disco prope basin lamellis corniformibus aucto. 



A. Petala 5-nervulosa; labellum brevissime unguiculatum, 

 basi distincte cordatum, glabrum, lobo terminali 

 brevissime unguiculato, transverse elliptico-rotundato, cornubus 

 acuminatis, uncinatis 2. E. Sprucki Reichb. f. 



B. Petala 7-nervulosa; labellum breviter unguiculatum, 

 basi subtruncatum, inferne puberulum, lobo terminali 

 longe unguiculato, cuneiformi, cornubus obtusis, sub- 



rect i 8 . 3. E. Sceptrum Reichb. f. 



1. ERIOPSIS BILOBA Lindl. pseudobulbis aggregatis, 

 robustiusculis, oblongo-sabconicis, apice diphyllis; foliis majus- 

 culis, oblongo-ligulatis, acutis, 5-nerviis, basi longiuscule 



> « 



