90 Botanisches Centralblatt. 



XVII. Pteridophyten. 



Clute, W. N. 1908. On changes of function in dimorphic fronds. 



(Fern Bull. XVI. p. 75—68. 1 pl. 1 flg.) 

 Morris, H. S. 1910. Observations on the stem structure of Hemitelia 



capensis. (South African Journ. Sc. VI. 4. p. 119 — 122.) 

 Mitchell, G. 1910. Contributions towards a knowledge of the ana- 



toni}' of the genus Selaginella, Spr. Part V. The Strobilus. (Ann. 



of Bot. XXIV. 93. p. 19—34. 2 pU 

 Farish, S. B. 1908. Botrychium Lunaria. (Fern Bull. XVI. p. 117.) 



[Botrychium Lunaria, not know definitely from California hereto- 



fore, is received by the writer from the vicinity of Mariposa, 



California. — Maxon]. 

 Rood, A, N. 1908. Lycopodium lucidulum porophilum in Ohio 



(Fern Bull. XVI. p. 105 — 106.) [Notes upon L. porophilum, now 



reported from two stations in Ohio. The habitat is described as 



"the exposed face of conglomerate cliffs along the cracks or 



seams." — Maxon]. 

 Scoullar, Mrs. A. E. 1908. Fruiting of Botrychium. (Fern Bull. 



XVI. p. 84 — 85.) [A brief record of fertility in four successive 



seasons of three species of Botrychium, B. matricariaefolium , 



B. obliquum and B. dissectum. — Maxon.] 



XVIII. Fioristik, Geographie und Systematik der Phanerogaineu, 



Bitting, Katherine G. 1908. The histological difference between 



Pinus Taeda and Pinus palustris. (Proc. Indiana Ac. Sc. 1908. p. 



127—129. 6 fig.) 

 Cajander, A. K. 1909. Beiträge zur Kenntnis der Vegetation der 



Alluvionen des nördlichen Eurasiens. III. Die Alluvionen der 



Tornio- und Kemi-Thaler. (Acta Soc. Sc. fennicae. XXXVII. 5. 223 pp.) 

 Cotte, J. et C. 1909. Sur Tindigenat du Ble en Palestine. (Bull. 



Soc. bot. France. LVI. 8. p. 538-540.) 

 Cowles, H. C. 1909. Present problems in plant ecology: the trend 



of ecological philosophy. (Amer. Nat. XLIII. p. 356—366.) 

 Domin, K. 1909. Ueber den systematischen Wert des Colchicum 



pannonicum Griseb. und Schenck. (Mag. bot. Lap. VIII. p. 327—333. 



1 Taf.) 

 Durand, Th. 1909. Les explorations botaniques au Congo beige et 



leurs resultats. (Bull. Ac. roy. Belgique. Cl. d. Sc. 1909. 12. p 



1347—1374.) 

 Geisenheyner, L. 1909. Onosma der Mainzer Sandflora Aventiv 



pflanze? (Natw. Wschr. N. F. VIII. p. 93—94.) 

 Gram, B. 1909. Undersögelser over de i forskellige Plantedele inde 



holdte Kalksalte. (Mem. Ac. roy. Sc. et Lettres Danemark. 7. ser 



VIII. 2. p. 73—118.) 

 Harnet, R. 1910. Nouveautes asiatiques du genre Sedum. (Rep 



nov. Spec. VIII. 1/3. p. 24-28.) 

 Harnet, R. 1910. Observations sur le Sedum Oreades nom. nov 



(Bull. Soc. bot. Fr. LVI. 8. p. 571—575.) 

 Harnet, R. 1910. Sedum Chauveaudi, S. Heckeli, species novae 



(Not. svst. I. p. 137—140.) 

 Hamat, R. 1910. Sedum Prainii, S. Levii, S. Liciae sp. novae 



(Bull. Soc. bot. Fr. LVI. 8. p. 566—571.) 

 Harnet, R. 1910. Sur deux Sedum nouveaux. (Rep. nov. Spec. VIII 



163/165. p. 142—144.) 

 Handel-Mazzetti, H. v. 1910. Revision der balkanischen und vor 



