126 Floristik etc. — Angewandte Botanik. 



CIX, C), P. repens (Taf. CX. A), Thelasis phreatioides (Taf. CX, B), 

 Chamaeanthns panicnlatus (Taf. CX, C), Sarcanthus papimmis (Taf. 

 CXI, A), Tae)iiophylliim breviscapwn (Taf. CXI, Cj, T. minutifloruni 

 (Taf. CXI, B), T. inaximiim (Taf. CXII). Jongmans. 



Taylor, N., On the Origin and Present Distribution of 

 the Pine-Barrens of New Jersey. (Torreya. XII. p. 229-242. 

 Oct. 1912. 



In this paper the author correlates the present geographic loca- 

 tion of the pine harren region of New Jersey with the Beacon 

 Hill formation of the New Jersey geologists which was an island 

 during the Pensau ken submergence. After an uplift the ancient 

 Vegetation of this island was completely surrounded by the invasion 

 of an entirely distinct type of broad-leaved trees. The maps strongly 

 suggest this correlation. All of the evidences seem to point to a 

 geological explanation of the origin and present distribution of the 

 pine barrens. Harshberger. 



Woodruffe-Peaeock, E. A., Change of Climale and Wood- 

 land Succession. (Jour. of Botany, vol. L. p. 247—253. 1912.) 



Historical records of a former occurrence of vineyards in 

 Southern England are indicative of a warmer climate. Other evidence 

 is Seen in the more open texture of timber of Quercus and Pinus 

 of the older peats as compared with the closer texture of the more 

 recent peat. The peat deposits of East Anglia are regarded as 

 developed in relation to woodlands on adjoining higher lands, and 

 the tree remains represent phases of migration of woodland on to 

 the peat. In an impressionist way it is suggested that the tree 

 remains represent periods, Quercus Betula and Pinus being the 

 older, Fraxinus, Hex and Ubnus tnontana the more recent. On 

 certain historical, fioristic. and faunistic grounds, Pinus sylvestris 

 vivixy have always been indigenous in parts of Lincolnshire, so also 

 Fägus which came in a Liter period with a warmer climate. 



W. G. Smith. 



Bui'chard, O.. Casimiroa edulis Llav et Lex., ein empfeh- 

 lenswerter Fruchtbaum. (Tropenpfl. XV. 3. p. 170 — 171. 

 1 Abb. 1911.) 



Die aus Mexiko (bis zu 2000 m. u. M. vorkommend) stam- 

 mende, zu den Rulaceae gehörende Casimiroa edulis Llav. et Lex. 

 („Sapote blanco") wird auf den kanarischen Inseln, insbesondere 

 in Santa Cruz und Orotava auf Teneriffa, aber auch auf 

 Palma und Grand Canaria in Gärten und an Feldrändern der 

 Früchte wegen kultiviert. Da der raschwüchsige und sehr aus- 

 dauernde Baum in der trockenen Küstenzone der Kanaren, die nur 

 250 - 400 mm. Niederschlagshöhe besitzt und gelegentlich von sehr 

 trockenen Winden bestrichen wird, allerdings bei künstlicher meist 

 jedoch nicht sehr reichlicher Bewässerung gut gedeiht, dürfte 

 derselbe für manche auch trockenere Gegenden unserer afrikani- 

 schen Kolonien wohl geeignet sein. Leeke (Neubabelsberg). 



