268 Pflanzenkrankheiten. - Bryophyten. - Pteridophyten. - Floristik etc. 



Hedgcoek, G. G. and E. Bethel. Pinon blister-rust. (Journ. 

 Agr. Res. XIV. p. 411—424. p. 54-57. Sept. 2, 1918.) 



Including characterization of the new species Cronartium occi- 

 dentale. Trelease. 



Higgins, B. B., A disease ofpecancatkins. (Phvtopatholosrv. 

 VII. p. 42-45. f. 1-2. Feb. 1917.) 



Including description, as new. of the causative organism, Mi- 

 crostroma Juglandis robustum. Trelease. 



Jackson, H. S., Two new foresttreerustsfrom theNorth- 

 west. (Phytopathology. VII. p. 352—5. Oct. 1917.) 



Contains as new: Chrysomyxa Weirii and Melampsora occiden- 

 talis. Trelease. 



Jenkins, A. E., Brown canker of roses, caused by Dia- 

 porthe umbrina. (Journ. Agric. Res. XV. p. 593—600. f. 1—3. pl. 

 D. and 46—47. Dec. 16, 1918.) 



The fungus Diaporthe umbrina is described as new. 



Trelease. 



Dixon, H. N,, Uganda mosses collected by R. Dümmer 

 and others. (Smithsonian Mise. Coli. LXIX. N° 8. p. 1 — 10. pj. 1. 

 Oct. 21, 1918.) 



Contains as new: Brachymenium variabile , Pilotrichella pilifolia , 

 Cyathophorum africanum, Rhacopilum marginatum, R. ugandae, 

 Lindbergia patenüfolia , Thuidiam pallidisetum , and Ectropothecium 

 Duemmeri. Trelease. 



Hayata , B„ Protomarattia, a new genus of Marattiaceae, and 

 Archangiopteris. (Bot. Gaz. LXV1I. p. 84-92. pl. 1 and f. 1—3. 

 Jan. 1919.) 



Contains as new: Protomarattia, n. gen., with P. tonkinen- 

 sis; and Archangiopteris subintegra and A. tamdaoensis. 



Trelease. 



Hitehcock, A. S., Report of the Committee on generic 

 types of the Botanical Society of America. (Science. N. 

 S. IL. p. 333-336. Apr. 4, 1919.) 



Regulations for fixing generic t3 T pes, which American botanists 

 regard as fundamental to the entire nomenclature question, and 

 the establishment of a permanent Committee on nomenclature, are 

 recommended: but the suggested rules and recommandations, as 

 part of a proposed Code of Nomenclature "Should await the forma- 

 tion of the latter for final adoption". Trelease. 



House, H. D., Report of the State Botanist, 1916. (Bull. 

 New York State Museum. N° 197. May 1, 1917 [Albany, 1918].) 



Contains as new: Cercospora Lathyri Dearness & House, Cory- 

 neum pithoidenm Dearn. & House, Cryptospora leiphaemoides Dearn. 



