Dendrobium. 225 



u. Flores glabri, discus labelli medio cristulis minutis 

 barbatus. Labelli lobi vix sejuncti. 



I. Lobi laterales labelli crenulali, intermedius orbicu- 



laris in disco papillosus, margine crenulatus. . . 439. D. odiosum. 



II. Labellurn flabellatum, margine non lacero-fimbriatum 440. D. annuligerion. 

 III. Labellurn cuneatum, trilobum, lobi laterales den- 



tati, intermedius longe lacero-iimbriatus . . . . 44 1. I). equitans. 

 ß. Flores ubique et omnino glabri, lobi labelli omnes 

 rotundati, margine integri, intermedius parvus. 



Lobus intermedius orbicularis 4 42. D. podagraria. 



y. Labellurn antice emarginatum, lobus intermedius ob- 

 soletus. 



1. Discus nudus, plerumque paulum incrassatus . 4 43. D. inconcinnum. 



2. Discus callo obscure 5-costato praeditus . . . 44 4. D. gracile. 



3. Labellurn lobulo minuto intermedio dense piloso 

 (fere appendicula nervi mediani) in sinu profundo 



loborum lateralium praeditum 4 45. D. tenuicaule. 



6. Labellurn simplex, crenulatum. 



\ . Flores magni, teneri, purpurei. (Species haud bene 



nota.) .... % 446. D. papilio. 



2. Flores viridi-flavi, suaveolentes 447. D. plebejum. 



3. Flores pallide purpurei, labellurn intensius . . 448. D. gedeanum. 



4. Lobus intermedius triangulus. (Folia angustissi- 



me linearia.) 449. D. truncatum. 



e. Triloba. (Lobo intermedio manifesto.) Labellurn cunea- 

 tum, lobus intermedius manifeste sejunctus, parvus. 

 * Discus ecallosus. 



I. Lobus intermedius labelli parvus, inferne barbatus; 



flores 1,5 cm longi 450. D. hypopogon. 



II. Lobus intermedius anguste triangulus, supra et 

 infra nudus, flores 3 — 3,5 cm longi et diam. . 451. D. Schmidtianum. 



Discus callo 3- v. 5-dactyJo instructus. 

 I. Caulis more sectionis basi fusiformis. 



1. Flores luteo-albi, rubro-striati, 2,5 cm diam. 452. D. Blumei. 



2. Ut praecedens, sed flores 1,2 — 1,5 cm longi, 

 pallide rosacei, margo labelli distanter fimbria- 

 folia lanceolata 453. D. tricuspe. 



3. Flores albi v. interdum roseo-suffusi, carinulae 

 tus, in disco 5 454. D. crumenatum. 



4. Flores cinnabarini, petala purpurea, labellurn 

 albuni area purpurea decorum 455. D.cinnabarinum. 



II. Caules per totam longitudinem tenues, non incras- 

 sati, ceterum et praecipue floribus D. crumenato 

 simillimum. 



Calli per discum 3, flores albi, conspicui, 3,5 cm 



diam 456. D. gemmiferum. 



** 



Hujus sectionis videtur sed imperfecte notum 457. D. mellitum. 



Folia teretia v. filiformia. 

 a. Labellurn simplex. 



er. Labellurn rhombeum, antice elongatum, acuminatum, 

 leviter serrulatum. Flores albi, labellurn purpureo- 

 signatum 458. D. teres. 



A. Eng ler, Das Pflanzenreich. IV. (Emuryophyta siphonogama) 50. ^5 



