326 BOTANICAL NOMENCLATURE IN NORTH AMERICA. 



4-5 in. long, 1^-2 in. broad at the middle, deltoid or rather 

 rounded at the base, deltoid or obtuse at the apex, with a castaneous 

 midrib and revolute margin. Veins immersed, obscure, anasto- 

 mosing only near the margin. Sori immersed, erec to -patent, 

 falling a little short of the margin. — Lambir, Sarawak, Chas. Hose. 

 Near G. alismcefolia Hook. 



240. G. alismcefolia Hook. — Baram, Sarawak, Chas. Hose. 



241. G. Feei Hook. — Sarawak, Chas. Hose. 



238 (71*). G. (Selliguea) acuminata, n.sp. — Rootstock wide- 

 creeping, ^ in. diam., clothed with minute linear black clathrate 

 paleae. Stipes remote, slender, naked, 4-5 in. long. Lamina simple, 

 oblong-lanceolate, very acuminate, and tapering very gradually to 

 the base, 6-8 in. long, l|-2 in. broad at the middle, membranous, 

 green, glabrous. Main "Veins fine, parallel, erecto-patent, i in. 

 apart, produced nearly to the edge ; intermediate areola with free 

 included veins. Sori linear, much interrupted, confined to the 

 upper third or half of the frond.— Next G membranacea Hook. 



244 (107*). Acrostichum (Gymnopteris) exsculptum, n.sp. 

 — Bootstock creeping. Stipe of sterile frond slender, naked, £ ft. 

 long. ^ Sterile lamina lanceolate, simply pinnate, 9-12 in. long, 

 2-2£ in. broad, rigid, green, glabrous. Pinnae multijugate, sessile, 

 lanceolate, acute, crenate, truncate at the base, 1-1£ in. long, £ in. 

 broad; lower not reduced. Veining of Goniopteris; main veins 

 distinct to the edge, l-12th to l-8th in. apart; veinlets trijugate. 

 Fertile frond with a longer stipe ; lamina 1 ft. long, 1£ in. broad ; 

 Pmnae sessile, remote, £ in. broad. — Niah, Sarawak, Chas. Hose. 

 Allied to A. virens Wall. 



BOTANICAL NOMENCLATURE IN NORTH AMERICA. 



By Edward L. Greene. 



Light and help on the subject of nomenclature we long since 

 learned to expect from every paragraph thereon which might 

 emanate from the editorship of this Journal. Certain recent 

 animadversions; are not in this regard a disappointment. The 

 article upon which it seems needful to offer one more word of com- 

 ment is, upon the whole, a very instructive one, and we have 

 welcomed it, notwithstanding that it bears rather heavily upon 

 some of us in America. 



Without asking for space in which to discuss a number of 

 interesting propositions set forth by Mr. Britten in the body of his 

 article, I must be permitted to try to correct a wrong impression 

 winch will have been made by his opening paragraph, feeling 

 confident that he, no less than others, will welcome the correction. 



It is quite erroneous to say, as the Editor does say, implicitly, 

 it not m just so many words, that, while an older generation of 



* Journ. Bot. 1^8, p. 257. 



