154 S. Kurz — A Sketch of the Vegetation of the Nicobar Islands. [No. 3, 



N. B. Diedrichsen has Zoster a in his list of JSTicobar plants. 



459. Halophila ovalis, Hf. — Eather frequent, along with other 

 pelagic phanerogams, on the submarine coral-reefs around Katchall. 



460. Eisthalus acoroides, Stend. — Forming submarine meadows and 

 attaining a length of 4 feet in the shallows around all the islands. Prefers 

 especially debouchures of freshwater-rivers. On the coral-reefs of Katchall 

 there occurs in masses what appears to be ■ a small form of this species 

 which has the leaves never above 6 inches long. 



461. Najas sp. — In water-holes of the jungle-marshes behind Kat- 

 jui, on the western coast of Katchall. (The specimens had been too much 

 ransacked by pigs from the village to enable me to procure more than the 

 tips of the plants). 



462. Bltxa Roxburghii, Rich. — Here and there in the rivulets on 

 the grass-heaths of Kamorta. 



SCITAMINHM. 



463. Alp iota, phoxntcea, Kamphoevener MS. — Mcobars (teste D.). 



464. Amomtjm (dymczewiczkxa) Fenzlii, nov. sp., Plate XII. 

 Herba perennis, sobolifera, elata, 5 — 7 ped. alta, glaberrima ; f olia 2 — 3- 



pedalia, lineari-oblonga, subabrupte acuminata, basi insequali in petiolum 3 — 4 

 lin. longum attenuata, glaberrima, subcoriacea ; vaginse ore valde productae ; 

 flores pro genere minusculi, inter squamas et squamulas glabras villoso- 

 marginatas sessiles et capitulum magnum lato-involucratum hemisphericum 

 f ormantes ; pedunculus usque semipedahs laxe et ample bracteatus ; bractese 

 oblongae ad ovato-oblongae, \\ — 2 poll, longse, glabrae, rosellae v. albidae, 

 vulgo villoso-ciliatae ; bractese involucrantes lato-ovales, obtusissimss, 1 — \\ 

 poll, longse, pallide rosese, glabras, marginibus lanato-villosae ; calyx tubido- 

 sus, apice 3-fidus v. 2-fidus cum lobo altero latiori et bilobulato, extus 

 parce adpresse sericeo-pilosus ; corolla 1^- poll, longa, tubo semipollieari 

 intus usque ad medium villoso extus parce piloso ; perigonii lobi pallide 

 rosei, concavo-lineares, pollicem circiter longi, marginibus parcissime pilosi, 

 rectiusculi, apice cucullato saepius penieillati ; labellum equilongum, extus 

 basin versus parce sericeum, trapezoideo-ovatum, concavum et genitalia 

 omnino includens, basi attenuatum, subtiliter radiato-nervosum, coccineum, 

 marginibus niveum ; anthera inappendiculata, apice emarginata, basi 

 marginibus barbata ; filamentum planum, intus villosum ; stylus sursum 

 parce pilosus et leviter incrassatus ; stigma oblique capitatum ; stami- 

 nodia 2, oblique oblonga, carnosa, apice ciliolata et passim biloba ; 

 baccae obovoideae, pollicem circiter longse, perigonii tubo coronatae, hirsutulae ; 

 semina obovoidea, atra, albo-arillata. — Frequent in the tropical forests of 

 Kamorta. 



