60. ACROSTICHUM, **** ff CHRYSODIUM. 423 



about halfway to the edge, the areolas in 3-4 rows, with free veinlets ; barren 

 pinnae distant, 1-1 in. 1., 1 lin. br. Precilopteris semicordata, Moore. Hk. 2nd 

 Cent. t. 88. 



Hab. Concan, Law ; Neilgherries, Mclvor. 



122. A. (Chrys.) Blumeanum, Hk. ; rhizome woody, wide-scan dent ; st. of 

 harren fr. 6 in. 1., deciduously scaly ; barren fr. 1-3 ft. 1., 1 ft. or more br., with 

 numerous sessile pinnae on each side, which are 4-6 in. 1., 1 in, br., the apex 

 acuminate, the edge slightly toothed, the base rounded ; texture membranous ; 

 racliis and midrib beneath slightly scaly ; areolce hexagonal, without free 

 veinlets ; fertile fr. with distant pinnoe 4-8 in. 1., ^-J in. br. /3, samoense ; st. of 

 barren fr. 1 ft. 1., the central pinnae 2^ in. 1., | in. br., more distinctly toothed. 

 Hk. Sp. 5. p. 268. 



Hab. Assam, Java, Philippines, and Samoa. Lomagramme pteroides, J. Sm. Hk. 

 Gen. Fil. t. 97 (Luzon, Cuming), is apparently an abnormal form of this, with the sori 

 in a line along the edge of pinnae rather narrower than the usual barren ones. A. Requi- 

 enianum, Gaud., should not unlikely also be referred here. 



123. A. (Chrys.) Raddianum, Kze. ; rhizome woody, wide-scandent ; st. of 

 barren fr. 4-6 in. 1., firm, naked ; barren fr. 1-2 ft. 1., 8-15 in. br., with 

 numerous pinnce on each side, which are 4-8 in. 1., ^-1 in. br., the apex 

 acuminate, the edge toothed, especially towards the point, the base cuneate, the 

 lower ones often stalked ; texture firm-herbaceous ; surfaces and rachis naked ; 

 no main veins ; costal areolce large, triangular, the others small, without free 

 veinlets ; fertile fr. like the other, but much smaller. Hk. Sp. 5. p. 264. 



Hab. Brazil and North Peru. Near the next, but distinguished by its wide-scandent 

 rhizome and more uniform veining. 



124. A. (Chrys.) serratifolium^ Mert. ; rhizome woody, short-creeping ; st. of 

 barren fr. 12-18 in. 1., slightly scaly ; barren fr. 1-2 ft. 1., 6-12 in. br., with 

 numerous sessile pinnce on each side, which are 3-8 in. ]., f -1^ in br., the edge 

 inciso-crenate, the base cuneate ; texture subcoriaceous ; rachis and surfaces 

 naked ; main veins distinct halfway or more to the edge ; costal areolce large, 

 triangular, the others smaller, without free veinlets ; fertile pinnce distant, 2-3 

 in. 1., J-J in. br., blunt, entire. Hk. Sp. 5. p. 263. 



Hab. Venezuela, Brazil, Peru. 



125. A. (Chrys.) Lindigii, Baker; rhizome woody, scandent ; barren fr. 

 2 ft. 1., 1 ft. br., with about a dozen spreading subsessile pinnce on each side, the 

 lower ones 6-8 in. 1., 1^ in. br., the apex acuminate, the edge crenate upwards, 

 the base cuneate; texture herbaceous; rachis and surfaces naked ; main veins 

 distinct more than halfway to the edge, the costal areolce shallow, all without 

 free veinlets; fertile pinnce distant, 4-5 in. 1., J-f in.br., entire, narrowed 

 gradually upwards. Chrys. Mett. Fil. Nov. Gran. p. 204. 



Hab. New Granada, Lindig 258. 



126. A. (Chrys.) prcestantissimum, Bory ; caud. erect ; st. 1 ft. or more 1., 

 firm, naked ; barren fr. 2-4 ft. 1., 1-1| ft. br., with numerous sessile pinnce on 

 each side, which are 6-10 in. 1., 1^-2 in. br., the point acute, the edge entire, 

 the base rounded ; texture subcoriaceous ; rachis and surfaces naked ; areolce 

 copious, hexagonal, without free veinlets ; fertile pinnce 4-8 in 1., j- in. br., 

 distant. Hk. Sp. 5. p. 269. G. F. t. 58. Neurocallis, Fee. 



Hab. West Indies. In this, as in A. Blumeanum, the sori are sometimes tsenitoid. 



127. A. (Chrys.) aureum, L. ; caud. erect; st. 1-2 ft. 1., tufted, strong, erect, 



