332 



Fr. Kränzlin. — Orchidaceae-Monandrae-Dendrobiinae. Pars 1 . 



ß. Discus labelli et lamellae plus minus pilosae v. pa- 

 pillosae. 



I. Flores 4,5 cm diam., callus minutus in medio disco ; 

 sepala pallide viridia lutea, petala et labellum in- 



tense lutea. . 7. D. ecolle. 



II. Flores 3,5 cm diam., pulvinar pilosum oblongum 

 in disco. Flores extus purpurei, intus rosei, labelli 



pars mediana alba 8. D. brevieolle. 



c. Labellum manifeste trilobum. 

 er, Discus labelli glaber. 



I. Lobi laterales labelli serrati, intermedius linearis. 



Flores purpurei 9. D. tipuliferum. 



II. Lobi laterales integri, intermedius subrhombeus, 



lamellulae 2 parallelae medio in disco \0. D. hydrophilum. 



ß. Discus labelli et lamellae pilosae v. papillosae. 



I. Flores 9—10 cm diam. pallide fusci; lobus inter- 

 medius labelli latissimus, antice acutalus, luteus, 



antice obscure ruber II . D. dilatatocolle. 



II. Flores vix majores, lobus intermedius anguste ob- 



longus. Flores albi, luteo-suffusi 12. D. phalangillum. 



III. Flores 4 cm diam. pallide rosei; pulvinar pilosum 



in disco, lobus intermedius lanceolatus i 3. D. nitidissimum. 



IV. Ut praecedens, sed lobus intermedius ovatus (pul- 

 vinar nullum) 14. D. Ou-Hinnae. 



V. Lobus intermedius rotundatus bilobulus, pulvinar 



nullum sed callus elongatus in disco I 5. D. utile. 



B. Folia lanceolata v. oblonga. 



a. Labellum simplex, leviter panduratum. 



a. Labellum antice spathulatum. Flores albi 6 — 7 cm diam. \ 6. D. pentanema. 

 ß. Labellum obscure trilobum 17. D. phcdangium. 



b. Labelli lobus intermedius suborbicularis, callus oblongus 

 in disco, flores rosei. 



a. Lobus intermedius angustissime triangulus . . . . 18- D. glabrum. 

 ß. Lobus intermedius ligulatus brevis. Flores albido-lutei ; 



discus medio pilosus 19. D. lageniforme. 



y. Lobus intermedius linearis elongatus, laterales margine 



incrassati 2 0. D. crenulatam. 



ö. Lobus intermedius antice dilatatus. Flores intense 



aurantiaci; discus glaber 21. D. longicolle. 



c. Labellum trilobum. Lobi laterales semper parvi, basi- 

 lares auriculiformes, tarnen ab intermedio bene sejuncti. 

 a. Lobus intermedius linearis, deinde in laminam par- 



vam dilatatus (longe-unguiculatus). 

 I. Flores sulphurei v. pallide flavi. 



i . Lobus intermedius ligulatus antice paulum dila- 

 tatus, aristatus, discus glaber 22. D. inauditum. 



2. Lobus intermedius sagittatus, discus velutinus 23. D. filiforme. 



3. Lobus intermedius obovatus v. oblongus, brevi- 



acutatus. Flores ultra 6 cm diam 24. D. inconstans. 



II. Flores extus rubescentes, intus flavi. 



Lobus intermedius late linearis deinde late v. 

 transverse oblongus fere subquadratus . . . . 25. D. tipula. 

 ß. Lobus intermedius toto ambitu ovatus v. panduratus 

 (brevi-unguiculatus). 



