186 TiENITIS. / 



Hook. Gen. Fil. tab. LXVIL A. Dicranoglossum, J. Sm. 

 Paltonium, Pr. Neurodium, i¥e. Drymoglossum (in part), 

 J. Sm. Moore.) 



Sori linear, very much elongated, continuous, rarely inter- 

 rupted, more or less sunk in a groove or sulcus and more or 

 less distant from the margin. Involucre none. Veins vari- 

 ously anastomosing, areoles with or without free veinlets. — 

 Fronds mostly uniform, simple or innnated or subdichoto- 

 mously pinnatifid, usually costate. 



A small yet sufficiently natural group, but botanists are not agreed as to the 

 propriety of keeping it entire. 



* Fronds simple. 1-4. 



1 . T. obtusa. Hook. ; caudex creeping ferrugineo-hirsute, 

 stipites 2-3 inches long glossy hirsute at the base, fronds 

 1^-2 inches long firm coriaceous glossy oblongo-ovate simple 

 obtusely cuneate at the base submucronate rarely obscurely 

 lobed or incised, costa indistinct, the margin incrassated, 

 veins internal rather sparingly anastomosing, areoles large 

 oblique, sori forming a continuous rarely interrupted line all 

 round at a little distance from the margm except at the base. 

 —Hook. Ic. PL t. 994 [or 94 of Cent, of Ferns). 



Ilab. On sandstone rocks, Sarawak, Borneo, alt. 2000 feet, 7'Ao.s. Lobb. — A 

 beautiful and very peculiar species, of which I have only seen specimens from the 

 above locality. Some of the young fronds vary much in form, orljicular and not 

 larger than a silver penny, or larger, subrhomboid or oval. 



2. T. lanceolata, Br. ; caudex stout creeping clothed with ap- 

 pressed ferruginous sul^ulate scales, stipites articulated on the 

 caudex approximate 2-4 inches long, fronds a span to a foot 

 long simple firm coriaceous glabrous 1-1^ inch wide lanceolate 

 often suddenly and long acuminate (especially when soriferous) 

 much attenuated below towards the stipes opaque strongly cos- 

 tate, veins copiously anastomosing and forming hexagonal are- 

 oles with simple or forked and much divaricated free included 

 veinlets clubbed at the apex, sori linear prominent close to 

 the margin chiefly occupying the contracted upper portion 

 of the frond close to the margin. — Br. Prodr.p. 154 (m obs.). 

 Klfs. En. Fil. p. 130. Metten. Fil. Hort. Lips. p. 27. Kze. 

 Pteropsis, Desv. in Ann. Soc.Linn. Pt.x'i. p. 218. Pr. Hook. 

 Fil. Exot. t. 45. Paltonium, Pr. Epim. Bot. Neurodium, Fee, 

 Gen. Fil. p. 93. t. 8. c. Drymoglossum, /. Sm. Moore — Plum. 

 Fil. t. 132. 



Hab. West Indian Islands, frequent ; Martinique, Jamaica, Guadeloupe, Cuba 



