482 BLECHNUM. 



denticulate, slightly falcate, dilated at base, central ^-f in. 1., 2-2| lin. bv. at 

 middle, lower gradually reduced to mere auricles, its st. 1 in. or less, nearly 

 black ; texture subcoriaceous ; surfaces naked, dull-green ; veins fine, distinct, 

 forked ; fertile fr. as large, with distant linear acute falcate pinnse and a much 

 longer st. 



Hab. Chiapas, South Mexico, Gheishreght, 207. 



20*. L. andiJia, Baker ; rhizome filiform, wide-creeping ; st. tufted or solitary, 

 1^-1 in., naked, very slender ; basal scales brown, lanceolate, membi'anous ; sterile 

 fr. oblanceolate, 1^-2 in. 1., 3-4 lin. br. ; pinnce close, adnate, 15-20-jugate, 

 oblong, unequal-sided, blunt, repand, ^ in. br., cuneate-truncate on lower side 

 at base, lowest round-cuneate ; texture firm-membranous ; sicrfaces naked, dark- 

 green ; veins distant, distinct, 3-4-jugate, only lowest anterior forked; fertile fr. 

 narrower, with spaced pinnae 1-1 1 lin. I. 



Hab. Andes, Unduari, 10,000 ft., PeaTce. 



35*. L. (Plag.) costaricensis. Baker ; sterile fr. oblong, above 1 ft. 1., G-7 in. br., 

 abruptly narrowed at base ; pinnce adnate, under \ in. br., entire, subfalcate, 

 bluntisli, confluent at base in a narrow wing, all except lowest close, the 

 edge revolute ; veins lax, forked, sometimes joined in costal arches ; fertile 

 fr. 1\ ft. 1., \ii. br., with lax pinnse. — Plagiogyria costaricensis, Mett. Kuhn, 

 Linn. 36. p. 149. 



Hab. Costarica, Wendland, 1066. — Differs mainly from hiserrata by its entire pinnse. 



XXXIV.— BLECHNUM. Page 183—186. 



5*. B. vittatum, Brack. ; st. of sterile fr. 5-6 in., clothed below with fibrillose 

 scales ; sterile fr. oblanceolate-oblong, 1 ft. 1., 4 in. br. ; immce linear, under 

 J in. br., upper close, adnate to rachis by a slightly dilated base, lower lax, rather 

 reduced ; texture firm-membranous ; surfaces naked ; veins fine, close ; fertile fr. 

 rather larger, with spaced narrow pinnse, upper much dilated at base. — Fit. 

 Amer. Expl. Exped. p. 131. ^. 16. 



Hab. Viti, BracTcenridge, 



XXXVII.— DOODIA. Page 189—190. 



4. Beside connexa the following vars. may be distinguished : — 1. Kuntliiana, 

 Gaud. Bot. Frey. t. 14, Sandwich Isles ; fr. moderately firm ; central pinnce 

 close, 1-fi J in. ]., bluntish, sharply-toothed ; sori 1-serial. 2. Brachenridgei, Carr. 

 Fi. Vit. 352, Viti ; texture firm ; pinnce fewer and more distant, central 2-2|- 

 in. 1., § in. br., bluntish ; sori dense, irregularly 2-serial. 3. Milnei, Carr. Fl. 

 Vit. p. 352, Kerinadec Isles ; rachis black ; fr. firra-membranous, dark -green ; 

 jnnncje close, sliarplj^-tootbed, central 4-5 in. L, 3-4 lin. br., acuminate. 4. durius- 

 cula, Moore, Gavd. Chron. ICGB, p. 114, New Caledonia; fr. firm, caudate; 

 central pinnce \-^ in. 1., oblong, obtuse ; sori 1-serial, 0-10-jugate. 5. Moorei, 

 Baker, N. S. Wales, C. Moore ; fr. flexible ; rachis black ; central ^>2»m«? 3 in. 1., 

 1^-2 lin. br., very acuminate, sharply-toothed ; sori l-serial. 



XXXVIII.— ASPLENIUM. 



C*. A. repandmn, Mett. ; rhizome short-creeping ; scales lanceolate like tho.«e 

 of Vittaria ; st. 3-6 in., greenisb, sligbtly scaly; /r. ligulate-lanceolate, 0-12 

 in. 1., 12-14 lin. br., acute, repand, narrowed below Very gradually ; texture 



