Oncidium. 257 



Inflorescentiä 40 ad 50 cm longa, laxe paniculata, a dimidio sparsim ramosa, rami pauci- 

 (ad 5)-flori, bracteae parvae, ovato-triangulae, acutae, pedicelli 3 ad 4 cm longi, tenues. 

 Sepala libera, obovato-oblonga, obtusa, patentia, 1,5 ad 1,7 cm longa, 4 ad 5 jimii lala. 

 Pctala oblonga vel elliptica, paulo breviora, obtusa, 7 ad 8 mm lata, omnia vix inter se 

 diversa excepto sepalo dorsali paulo majore. Labellum sessile, trilobum, lobi laterales 

 parvi, auriculiformes, rotundati, lobus intermedius multo major, suborbicularis, antice 

 leviter emarginatus, margine minute undulatus, totum labellum inter lobos laterales 

 l ; 4 cm antice 2,5 cm latum, fere 2 cm longum, crista labelli brevis, tridentata, dente 

 mediano longiore. Totus flos intense luteus, omnia phylla basin versus rubro-adspersa 

 vel suffusa, crista albida, rubro-tincta. Gynostemium breve, alae angustae, margine 

 antico denticulatae. — Fl. in Europa aetate. [Ex vivo!] 



Subäquatoriale andine Provinz. Columbische Zone und Venezuela, Sierra 

 Nevada de Sta. Marta und Caracas. — Seit 1848 in Europa eingeführt und bisher 

 nur kultiviert bekannt. 



279. 0. delumbe Lindl. Fol. Orch. Oncid. (1855) 48; Reichb. f. in Walp. Ann. VI. 

 (1861)801. — Pseudobulbi ovoideo-oblongi, cataphyllis 2 vaginantibus suffulti, mono- 

 phylli, ad 4,5 cm longi, 2 ad 2,5 cm lati. Folia oblonga, acuta, basi brevi-compli- 

 cata, coriacea, ad 12 cm longa, ad 3 cm lata. Inflorescentiä folia longe excedens, 

 racemosa, rarius pauciramosa, ad 35 cm longa, satis flaccida, rhachis leviter fractiflexa, 

 flores 3 cm inter se distantes, bracteae ovatae, acutae, ad 8 mm longae, tenues, pedicelli 

 cum ovariis 1,5 ad 1,8 cm longi, tenues. Sepala libera, oblongo-lanceolata, acuta, valde 

 reflexa 8 ad 1 cm longa, 2,5 mm lata. Petala oblongo-lanceolata, acuta, aequilonga, 

 3,5 mm lata, omnia lutea vel crocea, maculis magnis purpureis ornata, apicibus semper 

 luteis. Labelli lobi laterales rectangulariter divergentes, lineares, antice retusi, isthmus 

 lobi intermedii brevis, latus, subito in laminam transverse oblongam, antice satis pro- 

 funde sinuatam dilatatus, totum labellum 1,3 cm longum, inter lobos laterales 8 mm, 

 antice 1 cm latum, luteum, in isthmo maculis cinnabarinis (?) ornatum, crista depressa, 

 utrinque bidentata, dentibus latis rotundatis, antice bicruris, forcipata, dente minuto 

 interjecto. Gynostemii alae oblongae, margine integrae, rostellum modice productum, 

 triangulum, tabula infrastigmatica utrinque buccosa. — Fig. 21 D: a — b. 



Zentralamerikanische Provinz. Guatemala (Ure-Skinner!); von Bull u. 

 Veitch eingeführt! 



Nota. 0. tenui Lindl. simillimum, a quo praecipue floribus majoribus et sepalo dorsali 

 fere in pedicellum reflexo differt. 



280. 0. Baueri Lindl. in Bauer, 111. Orch. Gen. (1830 — 1838) t. 7; Sert. Orch. 

 sub t. 48; in Gard. Chron. (1 850) 600 ; Fol. Orch. Oncid. 45; Reichb. f. in Walp. Ann. VI. 

 (1861) 792; in Ber. Deutsch. Bot. Ges. III. 276; Griseb. Fl. Brit. W. Ind. Isl. 633; Veitch, 

 Man. Orch. PI. VIII. 12; Kränzl. in Engl. Bot. Jahrb. XVI. 494; Rolfe in Orch. Rev. X. 

 318; Urban in Symb. Antill. IV. 181 et Fl. Portoric. 181; Gogn. in Fl. Bras. III. 6. 398, 

 t. 85 et Syrnb. Antill. VI. 645. — O. altissimum Lindl. in Bot. Reg. XIX. (1833) t. 1651 

 (non Sw.). — Pseudobulbi ovoideo-oblongi, modice compressi, utrinque costati, 8 ad 

 12 cm longi, diphylli. Folia linearia vel lineari-lanceolata, acuminata, 3 ad 60 cm 



longa, 4 ad 6 cm lata, laete viridia. Inflorescentiae longissimae, flexuosae, paniculatae, 

 interdum ad 2 m longae, fere ab ipsa basi multiramosae, rami inferiores ad 36 cm 

 longi, interdum ramulosi, multiflori, superiores pro rata breviores, bracteae et ramorum 

 et florum triangulae, 6 ad 1 5 mm longae, scariosae. Sepala anguste lanceolata, acuta, 

 leviter undulata, 1,2 ad 1,5 cm longa, 3 ad 4 mm lata. Petala vix diversa, paulo 

 angustiora, acuta, ad 1,6 cm longa, omnia flavo-viridia, purpureo-fusco-vittata vel macu- 

 lata. Labellum toto ambitu panduriforme, lobi laterales parvi, rotundati vel obovati, 

 subobliqui, lobus intermedius longe lateque unguiculatus, transverse oblongus, leviter 

 emarginatus, 1,2 cm longus, ad 1,5 cm latus, crista in basi disci crassa, papillis 10 

 ad 11 inter se vix diversis in series 3 dispositis composita, totum labellum laete luteum, 

 basi purpureo-fuscum. Gynostemium ad 6 mm longum, alae angustae, supra et subtus 



A. Engler, üas Pflanzenreich. IV. (Embryophyta siphonogama) 50. -J 7 



