Oncidium. 137 



Sepalum dorsale unguiculatum oblongum vel obovatum, antice rotun- 

 datum, sepala lateralia medium usque connata, antice oblonga, obtuse acutata, 1,3 vel 

 1,5 cm longa, dorsale antice 6 mm, lateralia 5 mm lata. Petala majora, alarum instar 

 divergentia, brevi-unguiculata, obovata, antice rotundata, undulata, ad 2 cm longa, 

 antice 1 cm lata, omnia viridi- lutea, brunneo-vittata. Labelli lobi laterales minuti, 

 auriculiformes, elliptici, rotundati, lobus intermedius maximus, cuneato-obovatus, antice 

 emarginatus (si mavis obcordatus), margine minute undulatus, totum labellum 2,5 cm 

 longum, basi 7 ad 8 mm, antice 2 cm latum, luteum, margine anteriore brunneo-vitta- 

 tum vel maculatum, crista labelli cruribus 2 postice confluentibus composita, medianum 

 (et basilare) late triangulum, lateralia papulis quibusdam circumdata. Gynostemii alae 

 breves, rotundatae, integrae, paulum prosilientes. Flores circ. 5 cm longi, fere 4 cm 

 lati (si vi explanati). — Fig. 1 3 B: a — d. 



Südbrasilianische Provinz. Rio de Janeiro. Ohne genaueren Standort. (Von 

 Bull 1842 importiert und nur in kultivierten Exemplaren bekannt!) 



Nota. Species certe pulcherrima. Flores characteres 0. Marshalliani Reichb. f. et 0. 

 praetexti affiniumque quodammodo conjungunt; quam ob rem a cl. R. A. Rolfe non species 

 legitima sed hybrida naturalio inter 0. Forbesii Lindl. et 0. Marshallianum Reichb. f. habita 

 est. — Differunt varietates supra enumeratae quae inter se vix distinguendae floribus multo ma- 

 joribus, florum coloribus plerumque Ulis 0. caloglossi similibus nisi intensioribus. — An hybridae 

 naturales sint uti vult cl. Rolfe, fecundatione articifiali inter parentes sie dictos solvenda 

 quaestio erit. 



72. 0. Gardneri Lindl. in Hook. Lond. Journ. Bot. II. (1843) 662, in Bot. Reg. 

 XXXIII. sub t. 66, Fol. Orch. Oncid. 19; Reichb. f. in Walp. Ann. VI. (1861) 728 et 

 in Gard. Chron. N. S. X. 270; Barb. Rodr. N. Gen. et Sp. Orch. II. 191; Williams, 

 Orch. Alb. I. t. 1 2 et Fl. Mag. N. S. t. 401 et Orch. Grow. Man. ed. 7, 611 c. ic. ; 

 Veitch, Man. Orch. PI. VIII. 39 c. ic; Sander, Orch. Guide 180; Cogn. in Fl. Bras. 

 III. 6, 356. — 0. flabelliferum Pinel ex Paxt. Mag. Bot. XVI. (1849) 65 c. tab. fig. 2; 

 Morren in Ann. Gand V. 218; Lindl. Fol. Orch. Oncid. 58; Reichb. f. in Walp. 

 Ann. III. 555 et VI. 730, in Berl. Allg. Gart. Ztg. 1858, 379 et in Journ. Bot. 

 XXI. (1883) 270; Barb. Rodr. Gen. et Sp. Orch. nov. II. 190; Sander, Orch. 

 Guide 180. — O. praetextum Ed. Morren in Belg. hört. 1877, 357 t. XX. XXI. (non 

 Reichb. f.). — O. Gardnerianum hört. Gard. Chron. N. S. XIII. (1880) 759, XVI. 86, 

 fig. 23; Belg. hortic. (1882) 345, (1883) 344. — O. Forbesio-dasytyle Rolfe in Orch. 

 Rev. I (1893) 301. — Pseudobulbi aggregati, oblongi vel ovoidei, aneipites, diphylli, 

 5 ad 7 cm longi, ad 4 cm lati. Folia oblonga ligulatave, brevi-acutata, basin versus 

 angustata, ad 30 cm longa, 3 — 5 cm lata. Inflorescentia folia bene excedens, ad 80 cm 

 longa, scapus vaginulis perpaucis, valde distantibus, brevibus obsitus, satis validus, 

 supra paniculatus, bracteae breves, triangulo-lanceolatae, floribus in ramulis satis densis, 

 satis teneris, Ovaria cum pedicellis ad 3 cm longa. Sepalum dorsale late obovato-ob- 

 longum, apice rotundatum, basi brevi-unguiculatum, sepala lateralia a basi dimidium 

 usque connata, deinde oblonga, acuta, sublongiora, dorsale 1,5 cm longum, antice ad 

 9 mm latum, lateralia 1,7 cm longa, ubi libera 5 ad 6 mm lata. Petala latissime 

 obovata, undulata, antice rotundata vel leviter emarginata, ad 1,8 cm longa, 1,5 — 1,6 cm 

 lata. Labellum brevissime unguiculatum, lobi laterales minuti, rotundati, divergentes, 

 vix vel non reflexi, ab intermedio sinu parvo sejuneti, lobus intermedius latissime reni- 

 formis vel transverse oblongus, antice plus minus emarginatus, undulatus, saepius (non 

 semper) obscure trilobulus, lobulis rotundatis, crista in ungue lobi intermedii bicruris 

 vel foreipata, tuberculosa, additis utrinque tuberculis sine ordine dispositis, totum la- 

 bellum 2 ad 2,5 cm longum et latum. Flores textura satis teneri, colore varii, typi- 

 corum sepala fusca et transverse brunneo- vel purpureo-zonata, petala castanea, flavo- 

 marginata, labellum aureo-flavum, brunneo-zonatum, additis in basi punetulis vel maculis 

 atropurpureis. Gynostemium leviter curvatum, alae breviusculae, rotundae, integrae, totum 

 gynostemium glabrum, 3 ad 4 mm longum, flavo-viride. 



Var. flavescens Rolfe in Orch. Rev. III. (1895) 270, Kew Bull. App. (1896) II. 15, 



