Oncidium. 161 



e. Crista medio carinata, utrinque lobulata, papillis quibus- 

 dam adjectis, alae magnae, dolabriformes , rostellum 

 ornithorhynchum. Plantula pusilla 124. 0. crista galli. 



f. Ut praecedens, papillis longioribus in medio disci . . . 125. 0. isopterum. 



g. Crista duplex, postica cruribus 2 multi-ramulosis vel 

 condylomatosis composita. Gallo antico tridentato . . 126. '. viperinum. 



115. 0. chrysothyrsus Reichb. f. ex Warner, Sei. Orch. II. (1 865) t. 5; Gard. Chron. 

 (1867) 264; Williams, Orch. Grow. Man. ed. 7, 604; Sander, Orch. Guide 176; Cogn. in 

 Fl. Bras. III. 6. 321. — Huc 0. Beyrodtianum Schlechter in Fedde, Repert. VIII. (1910) 

 572. — Pseudobulbi dense aggregati, rhizomati oblique insidentes, cataphyllis sat magnis, 

 ipsos aequantibus vestiti, pluricostati, oblongi, diphylli, 4 ad 9 cm longi, ad 4 cm lati. 

 Folia oblonga, acuta, intense viridia, ad 2 cm longa, ad 4,5 cm lata. Pedunculus 

 folia multo excedens, tortuosus vel irregulariter flexus, ad 90 cm loDgus, flores in 

 paniculam multifloram dispositi, rami inferiores ad 1 5 cm longi, denique fractiflexi, 

 bracteae minutissimae, triangulae, acutae, pedicelli cum ovariis 2,5 cm longi. Sepalum 

 dorsale oblongum, concavum, acutum, lateralia potius lanceolata, dimidio longiora, acuta, 

 dorsale ad 6 mm, lateralia ad 9 mm longa, 2,5 mm lata. Petala oblongo-Ianceolata, 

 acuta, quam sepala minora, 5 mm longa, 2 mm lata, haec omnia pallide viridia, rubro- 

 vittata, reflexa. Labellum multo majus, brevi-unguiculatum, lobi laterales parvi, late 

 ovati, reflexi, 3 mm longi, 2,5 mm lati, lobus intermedius ex isthmo brevi in laminam 

 maximam, subquadrilobam, basi cordatam, antice profunde sinuatam dilatatus, utrinque 

 in lobulum majorem posteriorem et minorem anteriorem divisus, crista verrucosa, satis 

 alta, compressa, additis verrucis quibusdam sine ordine dispositis, totum labellum 1,5 cm 

 longum, antice 2 cm latum, flavum vel aureum, basi lineis quibusdam purpureis decorum. 

 Gynostemii alae membranaceae, latae, obtusae, margine integrae. — Fig. \kF\ a—e. 



Südbrasilianische Provinz. Aus der Umgegend von Rio(?). Nur kultiviert 

 bekannt! 



116. 0. Braunii Regel in Acta horti Petrop. IX. (1886) 620 et in Gartenfl. XXXV. 

 621 t. 1235, fig. a — e. — Pseudobulbi ovati vel ovato-oblongi, compressi, subancipites, 

 in rhizomate valde abbreviato congesti, ad 4 cm longi, 2 cm lati, 1,5 cm crassi, mono- 

 phylli, folia infrabulbosa pauca vel subnulla. Folia pseudobulborum ovato-oblonga, basi 

 cuneata, longe acutata, ad 1 2 cm longa, 3 cm lata, 7-nervia. Inflorescentia racemosa 

 vel paniculata, scapus flexuosus cum racemo (vel panicula brachyclada) circ. 1 0-floro 

 ad 25 cm longus, vaginulis paucis brevibus obsitus, flores satis dissiti, bracteae brevis- 

 simae, scariosae, pedicelli cum ovariis ad 2 cm longi. Sepala oblonga, acuta, reflexa, 

 lateralia basi connata, 1 ad 1,2 cm longa. Petala brevi-unguiculata, obovato-oblonga, 

 apice rotundata, 1,3 cm longa, antice ad 6 mm lata. Labellum panduratum, basi 

 subcordatum, lobi laterales paulum evoluti, trianguli, apice rotundati, obtusissimi, vix 

 in isthmum angustati, sensim in lobum intermedium bilobulum transeuntes, lobulis 

 rotundatis, divergentibus, leviter recurvis, crista in basi disci plurituberculata, pilosa, 

 tuberculis in series 5 dispositis, tuberculis a basi antice leviter increscentibus , totum 

 labellum 1,5 cm longum, basi et antice 1,3 cm latum. — Flores sulphurei, omnia 

 phylla a basi medium usque maculis magnis castaneis decora. 



Herkunft und Sammler unbekannt. Blühte im botan. Garten zu St. Petersburg. 

 Nota. O. flexuoso Sims affine esse videtur. Est species haud bene nota, icon Kegelii 

 parum characteristica. 



117. 0. flexuosum Sims in Bot. Mag. (1821) t. 2203; Lodd. Bot. Gab. t. 424; 

 Spreng. Syst. veg. III. 728; van Geel. Sert. bot. IV. t. 60; Lindl. Gen. et Sp. Orch. 199, 

 in Bot. Reg. sub t. 1920; Fol. Orch. Oncid. 25; Reichb. f. Fl. Exot. t. 94; Mutel, Mem. 

 pl. Orch. II. 19; Reichb. f. in Walp. Ann. VI. (1861) 739; Barb. Rodr. Struct. Orch. 1. 11 , 

 fig. 5; Orchidoph. (1888) c. tab. col. ; Veitch, Man. Orch. PI. VIII. 38; Gard. World VII. 

 53 c. ic. ; Williams, Orch. Grow. Man. ed. 7, 610 c. ic; Sander, Orch. Guide 180; Cogniaux 

 in Bull. Herb. Boiss. (1903) 935 et in Fl. Bras. III. 6. 328. — Radices copiosae, tenuis- 



A. Engler, Das Pflanzenreich. IV. (Embryophyta siphonogama) 50. \ \ 



