Floristik, Geographie, Systematik etc. 233 



between 2,0 and 2,4. This indicates that here the roots ofthe Vege- 

 tation are but little developed below the fifth foot. 



W. B. McDougall. 



Andrews, A. L., Bryological notes. IV. A new hybrid 

 Physcomitrium. (Torreya. XVIII. p. 52—54. Mar. 1918.) 



Physcomitrella patens ? X Physcomitrium turbinatum g. 



Trelease. 



Arber, A„ On heterophylly in water plants. (Amer. Nat. 

 Uli. p. 272—278. May-June 1919.) 



"The aquatic angiosperms include, by a process of sifting, 

 those plants whose terrestrial ancestors were endowed with a strong 

 tendency towards heterophylly." Trelease. 



Arthur, J. C, New names for species of phanerogams. 

 (Torreya. XIX. p. 48-49. Mar. 1919.) 



Senites Hartwegi {Zeugites Tourn.), Sanguinale pruriens [Pani- 

 cum Trin.), Nymphoides Grayanum {Limnanthemum Griseb.), 

 Aureolaria virginica {Rhinanthus L.), Dasystephana spathacea and 

 D. Mensesü (both heretofore carried under Gentiana). Trelease. 



Arthur, J. C, New species of Uredineae. X. (Bull. Torrev 

 Bot. Club. XLV. p. 141—156. April 1918.) 



Uromyces Atriplicis (Aecidium Atriplicis Shear;, U. fuscatus, U. 

 Krameriae, Puccinia wyomensis, P. Rosenii, P Heliconiae (Uredo 

 Heliconiae Diet.), P. Viornae, P. missouriensis, P. obesispora, P. in- 

 condita, P. adducta, P. Notopterae, Aecidium anthericicola , A. Ple- 

 num, A. Thenardiae, A. Cyrillae, A. Tithymali, A. Mosinnae, A. 

 conspicuum, A. Peresiae, A. steviicola, A. Keerliae, Uredo egenula, 

 U. panamensis, and U. unilaieralis. Trelease. 



Arthur, J. C, New species of Uredineae. XL (Bull. Torrey Bot. 

 Club. XLVI. p. 107-125. Apr. 1919.) 



Puccinia egressa (P. egregia Arthur, 1911, non P. egregia Arthur, 

 1905), P. fuirenicola {Uredo Fuirenae P. Henn.), P. Scribnerianum 

 [Uromyces Aristidae Ell. & Everh.), P. Kaernbachii [Uredo P. Henn.), 

 P. pallescens [Uredo pallida Diet. & Holw.), P. imposita [Uredo Muh- 

 lenbergiae Diet.;, P. Cockerelliana Bethel, P. inclita, P. Coelopleuri, 

 P. parca, P. gentilis, P. prospera, P. massalis, P. invelata Jackson , 

 Uromyces Shearianus (U. Atriplicis Arth), Uredo biporula, U. ami- 

 cosa, U. igneva, Aecidium Clemensae, A. Bourreriae Holway), A 

 Chamaecristae [A. Cassiae Ell. & Kellerm.), A. modestum, and A. 

 ingenuum, — attributable to the author unless otherwise noted. 



Trelease. 



Arthur, J. C, Relationship of the genus Kuehneola. (Bull. 

 Torrey Bot. Club. XLIV. p. 501—511. Nov. 1917.) 



Contains as new: Frommea n. gen. [Uredinaceae) with F. obtusa 

 (Uredo Strauss), F. Duchesneae [Phragmidium Syd.), F. Polylepidis, 

 Phakopsora alpina [Uromyces Schrot.), P. fenestrala [Uredo Arth.), 



