262 



and in light wood. With the growing fronds stand the stiffly erect, 

 tapering rachises of past ones, from which all the pinnse have fallen. 

 The vestiture of the stipites and rachises, though abundant at first, 

 is transient, leaving the fronds, in age, quite naked. A plant is found 

 occasionally with fronds dichotomously forked or fasciated at the apex 

 and the ends of the pinnae. The species has three ways of multipli- 

 cation, — by spores, by stolons spreading wide over the surface, and by 

 the abundant subterranean tubers. 



4. N. exaltata, Schott. — Stipites tufted, strong, 6-12 in. 1., decidu- 

 ously fibrillose with fulvous scales, glossy, dark-coloured ; fronds 

 pliant, 2-6 ft. 1. 3-5 in. w. narrowed at the base; firm ; glabrous and 

 bright green; rachis channeled, more or less deciduously fibrillose 

 or tomentose, glossy ; pinnae numerous, close and often imbricating, 

 usually distant below, 1^-3 in. 1. 4-6 1. w., blunt or pointed, often sub- 

 falcate ; sessile and subcordate at the base with a distinct auricle on 

 both sides, the upper one larger and deltoid, the lower rounded, 

 margins serrulate with appressed teeth ; veins obscure, once or twice 

 forked ; midrib immersed ; sori nearer th e margins than midrib, rather 

 sunk in the surface ; oblique, and, with the shield-like involucres, 

 cordate-orbicular, the sinus deeper than broad. Aspidium, Swartz. 



Common ; ascending to 3000 ft. altitude, growing on banks about 

 the trunks of trees and on the heads of palms, spreading freely and 

 often ascending a considerable height by the stoloniferous shoots, 

 hence the common name walking fern. Pinnae when prolonged more 

 sharply serrated at the end, at length deciduous, and sometimes bear- 

 ing a juxtamarginal line of cretaceous dots over the sori on the upper 

 side. This is the common and abundant species of the lower eleva- 

 tions. The habit is weak and prostrate or pendent. PI. Fil. t. 63. 

 SI. t. 31. Pits. 22. Poly podium, Linn. 



CONTRIBUTIONS TO THE DEPARTMENT. 



Library. 



Bulletin Royal Gardens, Kew. Nos. 113-118. May to Oct., 1896. [Kew.] J 



Bulletin, Torrey Bot. Club. XXIII. 10. Oct., 1896. [Editor.] 



Bulletin New York Agri. Exp. Station. No. 105. August, 1896. [Director.] 



Bulletin de l'Herbier Boissier. IV. 9. Sept. 1896. [Conservateur.] 



Report, Missouri Bot. Garden. 1896. [Board of Trustees.] 



Exp. Station Record. VII. 11. [U.S. Dept. of Agri.] 



Botanical Gazette. XXII. 4. Oct. 1896. [Editor.] . 



Hawaiian Planters' Monthly. XV. 10. October 1896. [Editor.] 



Agri. Journal, Cape Colony. IX. ]9. Sept., 1896. [Dep. of Agri.] 



American Journal of Pharmacy. LXV1II. 11. Nov. 1896. [Editor.] 



Montreal Pharm. Journal. VIII. 8. Nov. 1896. [Editor.] 



Chemist & Druggist. Nos. 860-863. Oct. 1896. [Editor.] 



Report Agri. Exp. Stations. Univ. of California. 1894-95. [Director.] 



Proc. & Trans. Nova Scotia Inst, of Science. 1894-95. [Secy.] 



W. I. & Commercial Advertiser. Oct. 1896 [Editor.] 



W. I. Home Builder. Oct. 1896. [Editor.] 



Times of Ceylon. Nos. 38-41. Sep. Oct. 1896. [Editor.] 



Sugar. VIII. 12. Oct. 1896. [Editor.] 



Sugar Journal. V. 8. Sept. 1896. [Editor.] 



La Sucrerie Indigene et Coloniale. XLVIII. 15-18. Oct. & Nov. 1896. [Editor. 



Science Gossip. III. 29-30. Oct. Nov. 1896. [Editor.] 



Papers published by Bot. Laboratory, Hamburg. [Dr. O. H, Burchard.] 



