ADIANTUM. 11 



times again pinnated, pinnae alternate approximate very mem- 

 branaceous opaque dull brown bearing a few scattered black 

 hairs seraiovate slightly arcuate upper margins at the base 

 truncated and parallel with the rachis, apex very rounded, 

 superior margin lobed with deep and shallow sinuses and 

 there bearing the sori distant from the margin or outline of 

 the entire pinna, involucres small reniform-rotundate, stipes 

 and rachis very slender ebeneous glabrous. (Tab. LXXX. 

 C.).—Blum. En. Fil. Jav. p. 215. 



Hab. Near Lingain Jattie, Province of Cheribou, Java, Blume. Luzon, 

 Cumiiig, 71. 55. — I am indebted to Dr. Blnme lor an authentic specimen 

 of this most delicate of ferns, whether the slenderness of its stipes and ra- 

 chis or the thinness of the pinnae be considered. The able author compares 

 it with the A. rhizophorum, Sw., observing that it differs in the want of 

 an elongated rooting apex, and in the position and form of the sorus. It 

 is also unlike in the shape and texture of the pinnules, in the greater 

 length of the rachis, and in being somewhat bipinnate below, as is shown 

 by Mr. Cuming's specimens, which are otherwise identical with Professor 

 Blume's plant. 



(Rachis often proliferoiis at the extremity of the pinnce. 21 — 32). 



21. A.lunulatum, Burm.; frond oblong pinnate, pinnae alter- 

 nate rather long-petiolate membranaceous oblong-lunate dimi- 

 diate below, upper margin lobed truncate at the base uppermost 

 pinna cuneate, sori linear approximate and often confluent, 

 stipes and rachis ebeneous glabrous the latter often extended 

 beyond the pinnae and proliferous. — Burin. Fl. Ind. p. 235. 

 Willd. Phytog. xiv. t. 9./. 1. Sp. PI. v. p. 430. Sw. Syn. 

 Fil. p. 121. Hook. 8^ Grev. Ic. Fil. t. 104. Wall. Cat. n. 

 77. Pteris lunata, Retz Obs. n.p. 28, /'. 4. Adiantum ar- 

 cuatum, Sw. Syn. Fil. p. 122. A. lunatum, Cav. Pnel. 1801, 

 ti. QIQ.—Rheede, Malah. xii. p. 72, t. 40. 



Hab. Throughout the hot parts of the East Indies ; Malay Islands and 

 Peninsula (Wallich), Ceylon, Java, &c., &c, Africa; Cape de Verde Is- 

 lands, Mr. Miller. Quorra, near Attah, D?: Vngel (Niger Expedition). 

 S. America; Acapulco (IFi/W.) ; Mexico (//<e?z^p). Organ Mountains, 

 Brazil, Gardner (in Herb, nostr. without No.). Minas Geraes, Claussen. 

 On the ruins of the old city of Panama, Seeman, n. 10. — This species is 

 very constant to its characters in all the multitudinous examples I possess, 

 whether from the Old or from the New World. In the latter country it 

 seems to be very rare. The pinnae vary from one inch to If inch in 

 length : in their delicate palish green colour and membranous texture and ra- 

 ther long petioles the present and two following species resemble ^. Capillm- 

 Veneris. The involucres are, however, linear or linear-oblong, their length 

 depending on the size of lobe they occupy ; and, according as the sinus be- 

 tween the lobes is narrow or more or less broad, is necessarily the contiguity 

 of the sori : sometimes the sori are lunate. 



