164 S. Kurz — A Sketch of the Vegetation of the Nicohar Islands. [No. 3, 



610. Nephbolepis acuta, Prsl. — Frequent in the coral-reef- and 

 tropical forests of Kamorta and Katchall. 



611. Nfpheodium decueeens, Bak. — Nicobars (Novara). 



612. Nepheodium peopinquum, E. Br. — In large quantities along 

 one of the swampy rivulets on the grass-heaths of Kamorta. 



613. Nepheodium molle, Desv. — Frequent in the tropical forests of 

 Kamorta. 



614. Nepheodium peolixum, Bak. — Not rare in the tropical forests 

 of Kamorta. 



615. Nepheodium truncatum, Bak. — In the tropical forests of 

 Kamorta. 



616. Gymnogeamme sp. — Nicobars (teste D.). 



617. Stenochl^ena scandens, J. Sm. — Common in all forests of 

 Kamorta and Katchall. 



618. Aceostichum aureum, L. — Frequent in salt-marshes and tidal 

 and mangrove swamps of all the islands ; on Kamorta it frequently recurs 

 along the marshy fresh water rivulets on the grass-heaths. 



619. Lygodium ctrcinnatum, Sw. — Common in the tropical forests 

 of Kamorta and Katchall. 



620. Lygodium scandens, Sw. — Here and there amongst long grass 

 and shrubbery along rivulets on the grass-heaths of Kamorta. 



621. Lygodium pdtnatifidum, Sw. — Not unfrequent amongst long 

 grass and shrubbery along rivulets on the grass-heaths of Kamorta. 



622. Ophioglossum pendulum, L. — Nicobars (Novara). 



623. Helmlnthostachys Zeylanica, Hook. — Along a swampy 

 rivulet below the old cattle-shed on the grass-heaths near the settlement on 

 Kamorta ; also in the swamp on the island Milu (Diedrichsen). 



624. Angiopteeis sp. — Nicobars (teste D.). 



Explanation of the Plates. 



Rate XII. Amomum Fenzlii. Fig. 1, flowering scape, nat. size (the bracts are re- 

 presented by mistake as hirsute : they are glabrous except on the margins) ; fig. 2, a 

 portion of the stem and leaf, shewing petiole and produced sheath, nat. size ; fig. 3, 

 flower, nat. size ; fig. 4, ditto, expanded ; fig. 5, labellum, slightly enlarged ; fig. 6, 

 genitalia and staminodes ; fig. 7, anther, from the side ; fig. 8, ditto, from behind 

 fig. 9, staminodes; fig. 10, fruit, nat. size; fig. 11, seeds, nat. size; fig. 12, ditto, 

 slightly enlarged. 



Plate XIII, Figs. 1 — 7. Trichoglottis quadricornuta. Fig. 1, flowering branch, 

 nat. size ; fig. 2, flower from the front ; fig. 3, ditto, from behind ; fig. 4, dissection of 

 the same ; fig. 5, the column and labellum, from the side ; fig. 6, labellum ; fig. 7, 

 transverse section of the same made between the two pairs of horns. 



Figs. 8 — 12. Eulophia decipiens. Fig. 8, flowering plant, nat. size; fig. 9, flower 

 from the front; fig. 10, column and labellum, from the side; fig. 11, labellum ; 

 fig. 12, pollinia. (All the figures except figs. 1 and 8 more or less enlarged.) 



