Adrorhizon, Addenda. 359 



Sepala libera, lateralia non in mentum coalita; petala minora, libera; labellum 

 siinplex, apici inferiori gynostemii affixum, basi leviter concavum, antice explanatum; 

 gynostemium pro flore longum, non in pedem productum; pollinia 4 (2 paulum minora); 

 antbera imp'erfecte quadrilocularis, cristata, stelidia parva, rostellum magnum, triangulum. 

 — Herba pusilla, radices crassissimae, crassiores quam pseudobulbi carnosae, rbizoma 

 repens, pseudobulbi, parvi, cylindracei, monopbylli; racemi juxla pseudobulbos Orientes, 

 pauciflori. — Genus adbuc monotypum insulae Ceylaniae indigenum. 



Nota. Quae profert J. D. Hook er vir cl. de afiinitate hujus plantae non omnino probo. 

 Corte non est Coelogyninis adscribenda et cum Panisea nullomodo comparari potest excepto 

 habitu generali, qui in utraque speciei satis vulgaris est et characterum peculiari eget. Pollinis 

 massulae necnon anthera tarnen sunt Dendrobii et si gynostemium in pedem etsi brevem esset 

 productum et sepala lateralia in mentum, Rcichenbachium sequerer qui in herbario Kewensi 

 notulas reliquit, primam Tbwaitesii opinionem, qui plantam Dendrobium purpurascens appella- 

 verit, omnino esse laudandam. Cum autem neque mentum sepalorum adsit nee pes gynostemii 

 elongatum sit, gynostemium ipsum autem in flore longiusculum, cum racemus sit lateralis 

 quod in Coelogyninis nunquam observatur, melius est, genus proponere novum, boc autem 

 Dendrobieis. adnumerare, quae racemos semper ferunt laterales, quae pollinia habent 4 simil- 

 lima, in quibus labella inveniuntur saepius simplicia. 



A. purpurascens Hook. f. in Trimen, Handb. Fl. Ceyl. IV. (4 898) 161. — 

 Dendrobium purpurascens Thwaites, Enum. PI. Zeyl. (1864) 2 98. — Coelogyne ? pur- 

 purasens Hook. f. Fl. Brit. Ind. V. (1892) 842 et fie. Plant, t. 2110. — Rhizoma 

 breve, cataphylla et in illo et bases pseudobulborum vestientia, brevia, acuta. Radices 

 crassissimae carnosae. Pseudobulbi anguste ovati v. subeylindraeei, 1,5 — 2 cm longi, 



2 — 3 mm crassi, monophylli. Folia lanceolata v. oblonga, acuta v. obtusa, 4 — 5 cm 

 longa, 8 — 12 mm lata, coriacea, rigida. Racemi e rhizomate pone pseudobulbos ex axilla 

 cataphylli Orientes, tenues, ad 8 cm longi, apice plerumque biflori, bracteae brevissimae, 

 quam pedicelli multo breviores. Sepala libera, ovato-oblonga, obtusa. Petala paulum 

 breviora, bene angustiora, ligulata, obtuse acutata. Labellum simplex, e basi multo 

 angustiore coneava sensim dilatatum explanatumque, margine erosulum, crispulum. — 

 Gynostemium supra descriptum. — Flores pallide purpurascentes, 1 cm longi, sepala 



3 mm, petala 1 mm, labellum antice 5 mm latum, Capsula 1,2 cm longa, pyriformis, 

 alte 6-costata. — Fig. 29 D—H. 



Provinz Ceylon: Nuwara Elieya (Thwaites n. 2352!). — Travancore u. Malediven. 



Addenda*). 



D. serratum Rolfe in Journ. Linn. Soc. XXXIX. (Aug. 1909) 174 [Contrib. to the 

 montane flora of Fiji by Miss Lilian Gibbs]. — »Caules elongati, angulati, foliacei, 

 45 — 60 cm longi. Folia oblongo-lanceolata, acuta, submembranacea, 12 — 1 4 cm longa, 

 circ. 1,5 cm lata. Flores fasciculati v. brevissime racemosi, numerosi, parvi. Bracteae 

 oblongo-lanceolatae, acuminatae, 5 — 8 mm longae. Pedicelli graciles, circa 1 cm longi. 

 Sepala et petala subconniventia, oblonga, acuta, 7 — 8 mm longa. Labellum elliptico- 

 oblongum, apiculatum, concavum, circa 1 cm longum. Mentum oblongum, obtusum, 

 5 mm longum. Columna lata, 2 mm longa.« 



Melanesische Provinz: Viti Levu; Schlucht bei Matani Siga, in ca. 1000 m 

 ü. d.M., im Walde. Fl. Sept. (n. 610). 



»An ally of D. viridiroseum Reichb. f. The habit of the plant is very similar to D. cal- 

 caratum A. Rieh, but the flowers are borne in fascicles or short arrested racemes on the old 

 pseudobulbs and individually are much like those of D. seeundum Lindl. The old pseudobulbs 

 are wreathed in flowers, in allusion to which the specific name is given. — Flowers of delicate 

 pinky white.« 



Nota. Pedilonis capitatis adscribenda erit et juxta D. viridi-roseum Reichb. f. rectius 

 D. purpureum Roxb. sub numero 234 1 » (cf. pag. 4 32) inserenda. 



*) Als der Druck des Bogen 23 auf S. 359 abgeschlossen war, erhielt ich 2 neue Publika- 

 tionen, deren Diagnosen ich hier nachträglich beifüge. 



