40 J. .(. SMITH. ORCHIDACKAE. 



Scct. Dcsmotiiclumi. 



Dendrobium rhipidolobum Schltr. in Schum. et Laut. Nachtr. FI. deutsch. Schutzgeb. Sûdsee, 151: 

 J. J. S. in Nova Giiinea VIII (1909), 60, t. XXII, 70. 



Niederl. Neu-Guinea: Humboldt-Bai bei Biwak HoUandia, epiphytisch auf mit Wald bedeckten 

 Felsabhangen ain Meere in 5 — 25 m. ii. d. M. (K. Gjellerup n. 448, bl. ini Mârz 191 1). 



Dièse gutc Art wird von Kranzlin unrichtig aïs Synonym zu Desmotrichum fimbriatuvi 

 Bl. gestcllt. 



Sect. Euphlebium. 



Dendrobium inaequale Rolfc in Kew Bull. 1901, 147; Hdok. f. in Bot. Mag. 1900, t. 7745; Krzl. 

 in Pllanzenr. Heft 45 (1910), 264, Fig. 22, G — N. 



Niederl. Neu-Guinea: Biwak HoUandia in c. 10 m. û. d. M. (K. Gjeli.erui' n. 445, bl. im 

 Marz 191 1). 



Sect. Sarcopodium. 



Dendrobium simplex J. J. S in Bull. lard. Bot. Buit. 2e sér. II (191 1), 8. 



Tab. XI, 30. 



Rhizoma brève, ramosum, radicibus crassis. Pseudobulbi approximati, ovales vel obovoidei, 

 obtusanguli (c. S), obtusissimi, nitidi, deinde transverse rugulosi, c. 1.8 — 2 cm. longi, i — 1.45 cm. 

 diam., 2-folii. Folia divergentia, ovata, apicem versus angustata, inaequaliter 2-dentata, basi 

 brevissime contracta, supra in utraque parte costac mediae convexa et sulcis 2—3 longitudina- 

 libus, rigide carnosa, c. 2.6 — 3.5 cm. longa, 1.6 — 1.9 cm. lata. Inflorescentiae 2, inter folia, 

 erecta, 2-florae, pedunculo superne leviter compresse et dilatato sectione transversa ovali 

 c. 4 cm. longe inferne nonnullis vaginulis tubulosis donnato, rachide c. 1.3 — 1.4 cm. longe. 

 Bracteae pedicello adpressae, eblongae, acutac vel obtusiusculae, concavae, 3-nerviae, c. 0.45 cm. 

 longae. Flores majusculi, carnosi, c. 2.5 cm. diam., sepalis petalisque subconniventibus. Sepalum 

 dorsale ovatum, superne leviter acuminatum, obtusum, concavulum, 5-nervium, c. 2.2 cm. 

 longum, bene 1 cm. latum. Sepala lateralia oblique triangula, anguste obtusa, concava, costa 

 média dorso leviter obtuse prominente, 5-nervia, c. 2.4 cm. longa, basi c. 3 cm. lata. Petala 

 elliptica, basi breviter unguiculata, apice brevissime obtuse acuminata, concava, basi 3-nervia, 

 costa média dorso ad apicem obtuse prominente, bene 2 cm. longa, 0.95 cm. lata. Labellum 

 mobile, horizontale, simplex, brevissime unguiculatum, marginibus praesertim superne et ad 

 basin incurvis valde concavuni, ambitu ovatum, obtusum, ungue 5-ncrvium, 2/5 partibus 

 inferieribus callo valido crasse carnoso 3-costato abrupte terminante, subtus convexum cum 

 sulco longitudinali, expansum late oblongum, apice rotundatum leviter retusum cum apicule 

 parvo obtuso in sinu, basi absque ungue subtruncatum, latc retusum, lobis basilaribus rotun- 

 datis,, c. 1.45 cm. longum, i.i cm. latum, ungue c. o.i cm. longe. Gynestemium brève, a dorso 

 valde compressum, cum anthera c. 0.35 cm. longum, filamente lengo subrecto tereti auriculas 

 triangulas falcatas obtusas longe superante. Anthera cucullata, suborbicularis, apice rotundato- 

 truncata papillosaque, antice plana, c. 0.24 cm. longa. Pollinia 4, latcraliter compressa, oblique 

 obovata, supra convexa, subtus plana. Stigma suborbiculare. Pes gynostemii cum evario angulum 

 subrectum faciens, levissime curvatus oblongus truncatus, apice excavatione oblenga, c. 0.7 cm. 



