NEl'iniODHJM, § LASTRKA. 147 



foot long, fronds 6-12 inches long firin-nieml)raiiaccons sub- 

 coriaceous pale-green soft-villous (the costic puhesciMit on 

 both sides) dcltoideo-ovate acuminate hi- below tripinnate, 

 ])riinary pinnre petiolate 2-G inches and more long broad- 

 ol)long acuminate, basal pair half-ovate, lowest itderior se- 

 condary pinneR the longest, uppermost primary pinuic pinna- 

 titid, pinnules petiolate from a cuneatc base (jbliquely ovate 

 sul)auriculate entire or lobato-pinnatifid, tlie lobes short 

 acute, the superior base truncate, veinlets twice or thrice 

 forked here and there anastomosing, sori small distant in two 

 series between the costule and the margin, involucre small 

 reniform membranaceous villous. — Hook, et Gnv. Ic. Fil. t. 

 102 {young specinien). Aspidium, Siv. Syn. Fil. p. 5G. Ji'i//d. 

 8p. PI. \. p. 2']\. Lastrea, iV. Polypodium, L/;/«. Phego- 

 pteris Portoricensis, Fee, Gen. Fil. p. 343. Metten. Aspid. p. 

 14. Eat. Fil. Fendl. et IVriyht. p. 208. 



Ilal). Jamaica, Swartz, Wilson, Purdie. Cuba, C. Wright, n. 81. j, n. 1000, 

 large, 1 foot long. Porto Uico, Baron de Scliuch. (iuadeloiipc, Bcaupcr/itin, u. 1 10 1 

 {e.v llerh. Mas. Hist. Nat. Paris). — Very variable in size. Tlic Plicyoplcris Porto- 

 ricensis of Eaton, in C. Wright's Fl. Cub. n. 1000, is a large form ol this i-pccics, 

 in which the involucres have been overlooked or, possibly, are^supiiressed. 



147. N. (Lastrea) acutum, Hook.; caudex ?, stii)es 2 feet 

 and more long thicker than a goose-quill chestnut-brown 

 smooth without scales (unless at the base, which 1 have not 

 seen), fronds ample 2 feet long Ijroad-ovate firm subcoriaceo- 

 membranaceous acuminate, primary pinna) petiolate ovato- 

 lanceolate finely acuminate pinnatifid at the apex the rest 

 pinnate, pinnules sessile 1-3 inches long lanceolate long- 

 acuminate deeply pinnatifid, segments oblong very acute sub- 

 falcate acutely and often puiigently serrated, veinlets simple 

 distant, sori in two series between the costule and the margin, 

 involucre dark-brown cordato-reniform. (Tab. CCLXXl.) 

 — Lastrea acuta, Kl. in Herb, nostr. 



Hab. Brazil, Sellow, in Herb, nostr. Near Tarapota, Eastern Peru, Spruce, 11. 

 46G2. — This has the largest pitinsc and pinnules of any of the polystichoiil -Ve- 

 piirodia known to me. I am indeijted to the late Dr. Klotzsch for an authentic 

 spofinieu. Spruce's n. 4GG2, from Tarajiota, appears to me to be ijuite the same 

 jpccics. 1 cannot find that Klotzscli has anywliere published it. 



148. N. (Lastrea) denticulate in. Hook. ; caudex short 

 stout oblique densely clothed with long linear-subulate dark- 

 brown falcate glossy scales \-\ inch long, stipites tufted 

 scaly at the base \-{ foot long brown or stramineous, frond 



