Physiologie. — Algae. — Eumycetes. 355 



35°— 40° C, but the growth Optimum is found to be 25°— 30° C, — 

 the maximum being 40.5° and the minimum 5° C. Trelease. 



Whiting, A. L., A biochemical study of nitrogen in cer- 

 tain legumes. (Bull n'^. 179. Illinois Agr. Exper. Sta. Mar. 1915, 

 also in abstract form, under the same title.) 



It is shown that the atmospheric nitrogen fixed by the root- 

 bacteria of Leguminosae is absorbed directly through the roots, and 

 not through the foliage: it is calculated from pot experiments that 

 Soja fixes as much as 5.5 Ibs. of nitrogen a day, per acre; and in 

 Vigna and Soja the accumulated nitrogen — at first largely con- 

 tained in the roots and their nodules — has been transferred to 

 the tops which contain about 74 per cent of it, less than 10 per cent 

 remaining in the roots at füll maturity. Trelease. 



Lambert, P. D., Two new species of Chavacium. (Tufts College 

 Studies III. p. 1 — 11. pl. 1. May 1910.) 



Chavacium gvacüipes and C. cylindricum. Trelease. 



Transeau, E. N., New species of green algae. (Amer. Journ. 

 Bot. I. 289—301. pl. 25—29. June 1914.) 



Zygnema Collinsianum, Z. decussatum (Z. pectinatum decitssatuni 

 Kirch.), Spirogyra ttarcissiana, S. tenuissinta riigosa, S. inflata foveo- 

 lata, S. rectangularis, S. pratensis, 8. caienaeformis parvida, S. cir- 

 cwnlineata, S. velata occidentaliSj S. punctiformis , 8. ellipso^pora, 8. 

 ellipsospova crassoidea , 8. submaxima, 8. illinoiensiSj Mougeotia turni- 

 dula, Oedogoniiim pratense, O. praticolum, O. illinoiense, and 0. 

 paucocostatum. Trelease. 



Arthur, J. C. and F. D. Fromme. A new North American 

 Endophyllum. (Bull. Torr. Bot. Cl. XLII. p. 55—61. 2 textfig. Feb. 

 1915.) 



Endophyllum. tuherculatum {Aecidium, tuberculatum Ell. & Kell.). 



Trelease. 



Arthur, J. C. and F. D. Fromme. The taxonomic value of 

 pore characters in the grass and sedge rusts. (Mycologia. 

 VII. p. 28—33. f. 1. Jan. 1915.) 



The most useful urediniosporic characters are found to be form 

 and size, color and thickness of wall, surface sculpturing and num- 

 ber and distribution of the germ pores. The latter form the subject 

 of this paper; they are found in number to ränge from 2 to 12, 

 3 or 4 being the most common when they are equatorial and 6 or 

 8 when they are scattered. Examination is facilitated by Clearing 

 in chloral hydrate and water or lactic acid. Trelease. 



Banker, H. J., Type studies in the Hvdnaceae. I. The genus 

 Manina. (Mycologia. IV. p. 271—278. Sept. 1912.) 

 Contains as new: Manina coralloides {Hydnum coralloides Scop.) . 

 M. Capnt-ursi (H. Capiit-ursi Fv.) and M. 8chiedermayeri Heufl. 



Trelease. 



