TAB. LXXIII. 



Antrophyum Mannianum, Hook. 



Caudice brevi repente dense tomentoso-radiculoso, stipitibus 

 approximatis gracilibus coinplanatis, frondibus amplis 6-8 

 uncias longis latisque rhombeo-rotundatis membranaceia 

 firmis subpellucidis (siccitate fusco-olivaceis) caudato-acu- 

 minatis subsinuato-serratis basi brevissime attenuates ecos- 

 tatis, venis conspicuis elevatis ubique anastomosantibus, 

 areolis oblongis, soris superficialibus saspe interruptis vel 

 subcontinuis. 



Hab. Epiphytal, on trees. Peak of Fernando Po, at an eleva- 

 tion of 3000 feet above the sea level, Gustav Mann, n. 367. 



This is unquestionably the finest species of the beautiful 

 Genus Antrophyum yet known to us: and is one of the 

 many novelties that rewarded our admirable collector, Mr. 

 Gustav Mann, for his late arduous but successful ascent of the 

 famous tropical Peak of Fernando Po, whose elevation is 

 estimated at 10,700 feet. The nearest affinity of the species 

 is, doubtless, with the A. latifolium, Blume, Fl. Jav. p. 75, 

 in note, (A. Boryanum, in the text, and on the plate, Tab. 31, 

 and of F6e, but not of Kaulfuss, or Hook, et Grev.) : but it 

 is truly distinct; Blume's plant being much smaller, of a 

 carnoso-coriaceous, very firm texture, quite opaque when dry, 

 with sunken veins ; its colour, when dry, pale yellowish green, 

 so that the copious brown sori which occupy the disk (not 

 extending to the margin) are exceedingly conspicuous on the 

 pale coloured frond: the base is gradually attenuated into 

 the shorter and broader stipites. — In our plant the dry dark- 

 colored frond is so membranaceous and pellucid that the 

 minutely cellular texture is distinctly seen with a magnify- 

 ing lens of small power, and the venation is very conspi- 

 cuous, slender, firm, and as it were prominent (not sunk). 



Tab. LXXIII. Plant of Antrophyum Mannianum, Hook., 

 fertile; nat size. Fig. 1. Portion of a fertile frond, with sori ; 

 ■magnified. 



Cure, 2. t. 73. 



