Neue Litteratur. 123 



Timm, R. 1909. Die Ausstreuung der Moossporen und die Zweck- 

 mässigkeit im Naturgeschehen. (Verh. natw. Ver. Hamburg. 1909. 

 p. 84-136.) 



XVII. Pteridophyten. 

 Cf. IV. Farmer and Digby; XVIII. Chenevard; Vaceari. 



Christ, H. 1910. Reliquiae Bonianae: Filices. (Not. syst. 1910. 6. p. 

 185-188. 1 fig.) 



Clute, W. N. 1909. A running fern. — Rhipidopteris peltata. (Fern 

 Bull. XVII. p. 16—18.) [Description and illustration of Rhipidopte- 

 ris peltata (Sw.) Schott, with notes on habitat in Jamaica. — 

 Maxon.] 



Clute, W. N. 1909. Rare forms of ferns. IX and XII. (Fern Bull. 

 XVII. p. 9—12. 4 fig. p. 45—48. 1 fig. p. 88—89. 1 fig. and p. 

 p. 99—100.) 



Clute, W. N. 1909. The dwarf spleenwort. Asplenium pumilum. 

 (Fern Bull. XVII. p. 48—50.) [An illustration and populär descrip- 

 tive notes of Asplenium pumilum, from specimens collected in 

 Jamaica. — Maxon.] 



Coker, W. C. 1909. Lycopodium adpressum forma polyclavatum 

 from South Carolina. (Fern Bull. XVII. p. 83-85. 1 pl.) 



Dutton, D. L. 1909. Osmunda cinnamomea forma angusta. (Fern 

 Bull. XVII. p. 89—90.) [Notes on the occurrence of this form in 

 Vermont. — Maxon.] 



Ferriss, J. H. 1909. The ferns of Cochise county, Arizona. (Fern 

 Bull. XVII. p. 1—7.) [Descriptive notes of travel in Arizona, with 

 mention of some 40 species of Pteridophyta known to occur in 

 Cochise county, with mention of habitat, and abundance. — 

 Maxon.] 



Georgevitch, P. 1910. Preliminary note on apospory and apogamy 

 in Trichomanes Kaulfussii H. K. et Grew. (Ann. of Bot. XXIV. 93. 

 p. 233—234. 7 fig.) 



Greene, F. C. 1909. Notes on Indiana Ferns. (Fern Bull. XVII. 

 p. 12-15.) 



Jennings, O. E. 1909. Hymenophyllum denticulatum in central 

 China. (Fern Bull. XVII. p. 106—107. 1 fig.) [This species, said to 

 have been known previously only from southern Asia, is now 

 reported from central China, and illustrated upon the basis of 

 specimens collected at Kuling, in the mountains near Kiuhiang. — 

 Maxon.] 



Lee, L. E. 1909. Asplenium Bradleyi in north Alabama. (Fern 

 Bull. XVII. p. 43 - 45.) [Descriptive and ecological notes on Asple- 

 nium Bradleyi D. C. Eaton, as the species occurs on sandstone 

 in northern Alabama. — Maxon.] 



Morris, F. J. A. 1909. Ophioglossum vulgatum in Ontario. (Fern 

 Bull. XVII. p. 102—105.) [Notes on the distribution and habitat of 

 Ophioglossum vulgatum in Ontario, Canada, with mention of the 

 high percentage of fertility among the plants of the various lo- 

 calities studied. — Maxon.] 



Poyser, W. A. 1909. The fern flora of Pennsylvania. (Fern Bull. 

 XVII. p. 65—83.) 



Prescott, A. 1909. Grape ferns. (Fern Bull. XVII. p. 100-102.) 



Prescott, A. 1909. The New York fern. (Fern Bull. XVII. p. 42—43.) 



Seoullar, A. E. 1909. Fern notes. (Fern Bull. XVII. p. 18-20.) 



Scoullar, A. E. 1909. Fruiting of Botrychium. (Fern Bull. XVII. p. 



