Neue Litteratur. 109 



Nash, G. V. 1907. The Arnes collection of orchids. (Journ. New 



York bot. Gard. VIII. p. 250-252.) 

 Olsson-Seffer, P. 1907. Visits to some botanic gardens abroad. 



(Plant World. X. 2. p. 27—30. 3. p. 59—63. 4. p. 84—90. 5. p. 117—118. 



6. p. 130-137. 7. p. 161 — 167. 8. p. 169—172. 9. p. 193—200.) 

 Pepoon, H. S. 1907. The flora of south-western Michigan. (Rept. 



Michigan Ac. Sc. IX. p. 104—112.) 

 Pereira Coutinho, D. A. X. 1907. As labiadas de Portugal. 



(Lisboa, 1907.) 

 Petrak, F. 1907. Rubus Wettsteinii, ein neuer Brombeerbastard. 



(Mag. bot. Lap. 1907. 11/12.) 

 Queyron, P. 1907. Catalogue des plantes vasculaires du bassin du 



Drot [Dordogne, Lot-et-Garonne, Gironde]. (Paris, 1907. 8°. 75 pp. 



1 carte.) 

 Raciborski, M. 1908. Coreopsis tinctoria var. prolifica, eine 



unzweckmässige Mutation. (Wiesner-Festschr. p. 417 — 420.) 

 Rechinger, K. 1907. Botanische und zoologische Ergebnisse einer 



wissenschaftlichen Forschungsreise nach den Samoainseln, dem 



Neuguinea-Archipel und den Salomoninseln von März bis Dezem- 

 ber 1905. (Denkschr. k. k. Ak. Wiss. Wien. 1907. 121 pp. (3 [2 färb.] Taf.) 

 Rechinger, K. 1908. Neu-Guinea- Archipel. (Vegetationsbilder von 



Karsten und Schenck. Reihe 6. Heft 2. 6 Taf. 14 pp. Text.) 

 Rechinger, K. 1908. Samoa. (Vegetationsbilder von Karsten und 



Schenck. Reihe 6. Heft 1. 6 Taf. 18 pp. Text.) 

 Rehder, A. 1908. The New England species of Psedera. (Rhodora. 



X. p. 24-29.) 

 Reid, C. and E. M. 1908. Euryale europaea. (Journ. of Bot. XLVI. 



543. p. 92.) 

 Reid, C. and E. M. 1908. On the pre-glacial flora of Britain. (Journ. 



Linnean Soc. XXXVIII. 265. p. 206—227 pl. 11—15.) 

 Reitmair, O. 1907. Die Vegetationsstation Korneuburg. (Korneu- 

 burg. 1907. 8°. 8 pp. 2 Taf.) 

 Rendle, A. B., E. G. Baker and S. Le M. Moore. 1908. An 



account of the plants collected on Mt. Ruwenzori. (Journ. Linnean 



Soc. XXXVIII. 265. p. 228—279. pl. 16—19.) 

 Reynolds, E. S. 1908. Scirpus hudsonianus in Rhode Island. (Rho- 

 dora. X. p. 20.) 

 Rikli, M. 1907. Observations phytogeographiques sur le flore du 



Lägern. (Arch. Sc. phys. et nat. Geneve. 1907, p. 85 — 86.) 

 Riley, L. A. 1908. Oecolog}' - of Montia fontana L. (Journ. of Bot. 



XLVI. 543. p. 92.) 

 Robinson, B. L. 1908. Notes on the vascular plants of the north- 



eastern United States. (Rhodora. X. p. 29 — 35.) 

 Robinson, C. B. 1908. Alabastra philippinensia. I. (Bull. Torrey 



bot. Club. XXXV. p. 63-75.) 

 Roda, G. 1908. La Botanica ricreativa e le meraviglie della Vege- 



tazione. (Torino. 1908. 2. ediz. 8°. 300 pp. con flg.) 

 Roland-Gosseäin, R. 1907. Cereus tricostatus, sp. nov. etC. Plumie- 



rii, sp. nov. (Bull. Soc. bot. France. LIV. p. 664— 669.) 

 Rolfe, R. A. 1908. The genus Porpax. (Orchid Rev. XVI. 181. 



p. 7-8.) 

 Rothrock, J. T. 1908. Larch, tamarack, lackmatack, Larix ame- 



ricana. (Forest Leaves. XI. p. 104. ill.) 

 Rydberg, P. A. 1907. Scandinavians who have contributed to the 



knowledge of the flora of North America. (Augustana Library 



Public. 1908. 6. p. 5-49.) 



