BOTANY. 813 



fertilization of the cleistogamouH flowers of Viola odoratd, O.call.'i acelosella, Linaria 

 s])uria, and Leersia oryzoideft. 



A contribution to the life history of Q,uercus, A. H. Coxrad {Bot. Gaz., 29 

 (1900), Nu. 0, iq>. 408-418, pJ>t. 2). 



The life history of flax and clover dodder, G. Wilsdorf {Fillding's Landw. Ztg., 

 48 {1899), No.^-. 14, j>j>. .'>44-n.',0; ir>, pp. ,767-567). — Studies are reported on the ger- 

 mination; exi^eriments on dodder seedhngs, with reference to the host plant; the 

 haustoria and methods of attack, and growth and reproduction of the dodder. 



A study of the leaf of the sugar beet at different periods of growth, 

 P. Wexdeler {Dnit. Zuclcerind., 25 {1900), No. 24, pp. 969-971).— Shows the content 

 of oxalic^ acid, total nitrogen, and proteid nitrogen. 



Plant growth in oil, L. Lutz {BuJ. Sac. Bot. France, S. ser., 47 {1900), No. 2-3, 

 pp. 76-82, Jig. 1). — An account is given of the growth of a number of fungi in castor 

 oil and in vaseline. Ai^pergiUuK repen.-i iwSide a remarkable growth in both media. 



Transpiration of evergreen leaves, 0. Rosenberg ( Ofvers. K. Svenska Vetensk. 

 Ahid. Fi'jrluoidl., 1900, No. 1, pp. 8.5-98). 



The utilization of the reserve materials of seeds during germination. Maze 

 {Co)iij)t. liend. Acad. Sci. Pari. % ISO {1900), No. 7, pp. 424-4^7).— Brieiiy outlines 

 investigations on starchy and oleaginous seeds. The reserve materials of both are 

 transformed into sugar for translocation. Enzyms are said to vary little in quantity 

 between the third and sixth day of germination, and a temperature of 53° C. is the 

 optimum for their activity. 



The carbohydrate reserve of white clover seed, H. Herissey {Compt. Rend. 

 Acad. Sci. Paris, ISO {1900), No. 25, pp. 1719-1721).— The carbohydrate reserve ma- 

 terial in the seeds of Trifolinm /-p^wu-s- is said to be a mannogalactan, the properties of 

 which resemble those exhibited in the reserve material of fenugreek and alfalfa seed. 

 It is hydrolyzed by seminase, being at least partially transformed into reilucing 

 sugars. 



Physiological observations on some perennial herbs, A. RiMB.vcn {Bot. Gaz., 

 SO {1900), Xo. .), jtj). 171-188, pi. 1). — Notes are given on the underground structures 

 and their development of a consiilerable number of jierennial herbs. 



On the absorption of soluble salts by plants, E. Demoussy ( Thesi.^, Paris, 1899; 

 noted from Ann. Agron., 25 {1899), Nos. 11, pp. 497-548; 12, pp. .561-607).— See E. S. 

 R., 11, p. 1009. 



On the presence of formaldehyde in plants, G. Pollacci {Rend. R. Imt. Lom- 

 hardo Sci. e Let., 2. ser., 32 {1899), pp. 4; obs. in Bot. CenthL, 82 {1900), No. 4, 

 p. 116). — Tests of green leaves of a number of species of plants are reported in which 

 formaldehyde was found in the chorophyll-bearing tissues when they had been 

 exposed to the light. 



Physiological investigations of inulase and inulin, A. Rich Aim {TJtesis, 

 Parix, 1900, ]>p. 85). 



Photosynthesis in light w^hich has traversed leaves, E. Griffon {Rer. Gen. 

 Bot., 12 {1900), Nj.-i. JS8, pj>. 209- J2S; 1S9, pp. 27 2-288) .-Thia paper gives the 

 details of investigations on the effect of light made to pass through leaves on photo- 

 synthesis, a preliminary account of which has already been given (E. S. R., 11, 

 p. 1010). 



A chemical study of chlorophyll assimilation, S. Posternak {Rev. Gen. Bot., 

 12 {1900), Nos. 133, pp. 5-24; 134, pp. 6.^-7-?).— Discusses the first product produced 

 from phosjihoric acid in green i)lants and the physiological role of inosite. 



Phyllorubin, a new derivative of chlorophyll, L. Marchlewski {Anz. Akad. 

 ir/.w. Krabni, 190ii, No. 2, pp. 63, 64). 



Experimental investigations on the hydrolysis and utilization of raffinose 

 by Penicillium glaucum, H. Gillot {Bnl. Acad. Roi/. Sci. Belg., 1900, No. 2, pp. 

 31). 



