212 Fr. Kränzlin. — Orchidaceae-Odontoglosseae II. 



a. Lobus intermedius latissime ovatus, acutus, undu- 



latus, sepala, petala, la bellum 3 ad 4 cm longa, 



labelli lobus intermedius roseus 207a. 0. hastatum. 



ß. Lobus intermedius cuneatus, obovatus, subreniformis, 



antice emarginatus, labellum album, praesertim basi 



roseo-suffusum . 208. 0. leucochilwni. 



y. Lobus intermedius quadrato-subreniformis, laterales 



trianguli, obtusi, oblique in intermedium transeuntes, 



crista pluridactyla 209. 0. macrojpterum. 



ö. Lobus intermedius obovato-oblongus, discus labelli 



utrinque macula magna castanea notatus. Gyno- 



stemium parce velutinum, alae vix evolutae. . . 2*0. 0. Kraenzlinianum. 

 e. Lobus intermedius deflexus, reniformis, in isthmo 



purpureo-maculatus, alae angustae parvae, crista 



labelli depressa, subrhombea 2 11 . 0. Mülianwn. 



b. Sepala lateralia quam dorsale et petala longiora. 

 a. Crista in basi labelli bicruris, alae gynostemii parvae, 



vix explanatae, rostellum tridenticulatum . . . . 212. O. planilabre. 

 ß. Crista rotundata, pluridentata, processus dcntiformis 



in fronte gynostemii infra foveam stigmaticam, 



rostellum tridenticulatum 213. O. hirundo. 



[Hie militaret, si melius nota esset, species icone 



tantum adhuc nota.] 213a. O. aurarium. 



y. Praecedenti [213] affine, differt floribus minoribus, 



labellis triangulis, postice rectilineis, lobo intermedio 



semiorbiculari, crista brevi, 5-dentata 2 1 3 b. O. chelidon. 



ö. Praecedenti affine, differt phyüis angustoribus, 



petalis alarum instar divergentibus, crista utrinque 



3-dentata, addita tertia triangula 2 1 3 c. O. chelidonizou. 



B. Labelli lobi laterales plus minus obsoleti, sepala petalaque 

 anguste vel lineari-lanceolata. 



a. Alae gynost. superne in cornua brevia evolutae, carinae 



4 in disco 214. O. rnaculatum. 



b. Alae gynost. subquadratae, margine erosulae, crista 



pluridaetyla in basi 215. O. phymatochiluin. 



c. Alae gynost. subnullae, crista 11-dactyla verrucosa 



in basi 216. O. ochmatochilum. 



207a. 0. hastatum Lindl. in Paxt. Fl. Gard. I. (1851) 5 [Ed. 2, I. 5]; Fol. Orch. 

 Oncid. 55; Veitch, Man. Orch. PI. VIII. 42; Williams, Orch. Grow. Man. 7. ed. 612; 

 Reichb. f. in Walp. Ann. VI. 812. — O. stelligerum Reichb. f. in Gard. Chron. (1873) 

 1398. - - Var. Ernesti Williams in Lindenia XVI. (1901) t. 743. — Odontoglossum 

 hastatum Batem. Orch. Mex. et Guat. (1843) t. 20. — Odont. phylloehüum Morren in 

 Ann. Gand. (1849) 295, t. 271. — Gyrtochilum Iuergensianum Lemaire Jard. Fleur. IV. 

 (1854) t. 368. — Pseudobulbi magni, ovoidei, compressi aneipitesque, costis 2 vel 3 

 in utroque latere instrueti, diphylli, ad 1 cm longi, basi ad 5 cm lati. Folia e basi 

 brevi-complicata lanceolata vel oblongo-lanceolata, obtuse acutata, coriacea, circ. 20 cm 

 longa, 4,5 ad 5 cm lata. Scapi virides, plus minus intense rubro-suffusi vel maculati, 

 ad 1,20 m longi, supra racemosi vel paniculati, pluri- ad multiflori, rami satis congesti, 

 paueiflori, bracteae 3 mm longae, triangulae, acutae, pedicelli cum ovariis 3 cm longi. 

 Sepala lanceolata, acuminata, flaveola, maculis purpureis vel castaneis ornata, dorso 

 saepe viridia, 2,8 ad 3,5 cm longa, 8 ad 1 mm lata. Labellum hastatum, unguiculatum, 

 lobi laterales anguste oblongi, antice oblique retusi, denticulati, 6 mm longi, 3 mm lati, 

 lobus intermedius ovato-lanceolatus, interdum late ovatus, antice subito breviterque acutatus, 



