Floristik, Geographie, Systematik etc. 269 



& House, Cryptosporium Robiniae Dearn. & House, Dendrodochium 

 acerinum Dearn. & House, Diplodia Convolvuli Dearn. & House, D. 

 subcuticularis Dearn. & House, Eutypella Staphyleae Dearn. & House, 

 Gloeosporium Lappae Dearn. & House, Leptosphaeria Myricae Dearn. 

 & House, Macrophoma Ceanothi Dearn. & House {M. Peckiana Dearn. 

 & House), Massarinula Brassicae Dearn. & House, Metasphaeria 

 anthelmintica Dearn. {Sphaeria anthelmintica Cooke), Microdiplodia 

 laurina Dearn. & House, Mollisia plicata Baptisiae Dearn. & House, 

 Phoma Vaccinii Dearn. & House, Ramularia lanceolata Dearn. & 

 House, Septoria Gentianae Dearn. & House, Sphaerographium hys- 

 tricinum Viburni Dearn. & House, Sphaeropsis Liquida mbaris Dearn. 

 & House, S". punctata Dearn. & House, Microdiplodia paupercula 

 Dearness {Diplodia paupercula B. & Br.), Septoria Krigiae Dearn. & 

 House, S. xanthismatis Dearn. & House, Sphaeropsis Arislolochiae 

 Dearn. & House, S. tulipastri House {Sphaeropsis Dear nessii Sacc. & 

 Trott,), Viola fimbriatula X perpensa. Trelease. 



Le Roy, H. Harvey, A coniferous sand dune Cape in 

 Breton Island. (Bot. Gaz. LXVII. p. 417-426. f. 8. May 1919.) 



The dominant tree of the dune is Picea canadensis. Abundant 

 layering takes place both in this species and in Abies balsamea 

 which occurs with it as the sand piles up around them. The dune 

 is moving toward the ocean and the chief sand binder is Poa 

 compressa. W. ß. McDougall. 



Mac Caughey, V„ The guavas of the Hawaiian Islands. 

 (Bull. Torrey Botan. Club. XLIV. p. 513—524. 1917.) 



The guavas {Psidium L.) are valuable tropical and subtropical 

 fruit trees and shrubs. They show a marked adaptability to local 

 conditions and therefore the guavas introduced on the Hawaiian 

 Islands have become serious pests, particularly on the arable lands. 

 Land desired for agricultural purposes, that has become overgrown 

 with guava scrub, is very difficult to clear. In addition to the wild 

 forms, there are a number of choicer varieties occurring only in 

 cultivation. The different forms are described in this paper in a 

 general way, much attention is paid to the fruits and to diseases 

 (of P. Guajava L.) Jongmans. 



Nakai, T., Aconitum of Yeso, Saghaline and the Kuriles. 

 (Bot. Mag. Tokyo. XXXI. p. 219—231. 1917.) 



This paper contains a general description of the genus with 

 remarks on nomenclature and distribution of the species oi Aconitum 

 of Yeso, Saghaline and the Kuriles. Among the fourty-two 

 known Japanese species eighteen are common to two or more 

 independent regions. The others are endemic in Corea, Quelpart, 

 Hondo, Yeso, Shikotan or Saghaline. The enumeration of 

 species contains many notes on synonymy, distribution and.other 

 details. New name: Aconitum Miyabei, near A. Fischeri (Sachalin). 



Jongmans. 



Nakai, T„ Ligularia Coreana. (Bot. Mag. Tokyo. XXXI. p. 121 — 127. 



1917.) 



This paper contains a key to the determinatibn of the sections 



