202 SUMMAEY OF CUKRENT RESEARCHES RELATING TO 



bill-top downwards. The species is strongly affected by environment. 

 W.N. Clute * gives an account and a figure of Bhchnum spicant bi- 

 pinnatum from Vancouver Island. E. G-. Britton f describes how she 

 found Schizsea pusilJa in Nova Scotia, and how it occurs in New Jersey. 

 J. A. Bates % gives an account of Dryopteris fragrans, its characteristics 

 and habitat. Gr. F. Atkinson § writes on the relation between the 

 sterile and fertile leaves of dimorphic ferns. W. N. Clute, |1 under the 

 heading Pteridographia, has collected a number of notes on ferns — 

 Fellaea gracilis on sandstone ; Trinomial fern names ; Sporting of Poly- 

 pody ; Fertilization of ferns ; Distribution of Schizsea pusilla ; A curious 

 Panama fern ; Nephrolepis muscosa. 



Remarkable Panama Fern.l — W. E. Maxon describes a remarkable 

 new fern from Panama, Polypodium podocarpum, collected at an altitude 

 of about 6000 ft. on the mountains north of David, in the province of 

 Chiriqui, on the western side of Panama. The plant occurs on the 

 trunks of trees in the rain forest, and is remarkable for the peculiar 

 position of tlie sori, which are in appearance terminal upon the lobes of 

 the pinnae. The fronds have an unlimited growth in length, but are 

 usually broken off above, whereupon the exuberance of the plant passes 

 into the pinnse. The apical position of the sori may indicate a distinct 

 generic type. 



Bolivian Ferns.** — E. Rosenstock records 25 species and varieties of 

 ferns collected by 0. Buchtieu in the valley of the Espiritu Santo River 

 in Bolivia. 



Malayan Ferns. tf — C. R. W. K. van Alderwerelt van Rosenburgh 

 publishes descriptions of several novelties — 10 species and 7 varieties of 

 ferns, and 1:! species and 5 varieties of fern-allies — collected in the 

 Malay Islands. He also finds it necessary to change a certain number 

 of names. 



Siamese Ferns. J| — C. C. Hosseus gives a list of 30 ferns and 4 fern- 

 allies collected by him in Siam in 1904-5, and determined respectively 

 by H. Brause and C. Hieronymus. 



New Guinea Ferns. §§ — E. Rosenstock publishes the names of 101 

 ferns collected by C. King in British New Guinea. Diagnoses of eight 

 new species and one variety are given. 



* Fern Bull., xix. (1911) pp. 72-4 (fig.). 



t Fein Bull., xix. ((1911) pp. 77-80. 



X Fern Bull., xix. (1911) pp. 80-1 



§ Fern Bull., xix. (1911) pp. 81-4. 



II Fern Bull., xix. (1911) pp. 84-90. 



«[[ Smithsonian Misc. Coll. Washington, Ivi. No. 24 (1911) 5 pp. (3 pis.). 

 ** Fidde, Repertorium. ix. (1911) pp. 342-4. 



ft Bull. Jard. Bot. Buiteuzorg, ser. 2. i. (1911) 29 pp. (4 pis.). See also Bot. 

 Centralbl., cxix. (1912) p. 57. 



XX Beih. Bot. Gentralbl., xxviii. 2te Abt, (1911) pp. 363-7. 

 §§ Fedde, Repertorium, ix. (1911) pp. 422-7. 



