1906] CURRENT LITERATURE 317 
Haustorium of Santalum.—BarBeEr’s has begun the publication of a series of 
papers on root parasitism, the first one dealing with Santalum album, giving an 
account of the early stages of the haustorium as far as penetration into the host’s 
tissues. This is a somewhat fuller account than that oo by the author in 
the Indian Forester and noticed in this journal.*® second paper is promised 
which will describe the structure of the mature eects Investigation of 
the mutual influence of host and parasite is also in progress.—J. 
A new red clover.—Branp’’ has published the results of a study of a red 
clover not hitherto used in the United States as a forage plant. The seed is from 
Orel, in the “Black Earth” region of Russia, and the plant possesses advan- 
tageous qualities that make its introduction desirable. Perhaps its most striking 
mark in the field is the almost complete lack of hairiness; but it is the general 
leafiness and the persistence and number of basal leaves that suggest for the new 
variety the name T. pratense foliosum Brand.—J. M. C. 
Plant diseases in Nebraska.—HerAtp*® has published notes on the distribution 
and severity of numerous diseases of cultivated plants in Nebraska during 1995, 
together with suggestions as to treatment of the various troubles. This in a way 
constitutes a handbook of plant diseases in Nebraska. He has also published an 
account of a rot of apples due to Sclerotinia jructigena,’® and a disease of the 
cottonwood due to Elfvingia megaloma,?° once a member of the genus Poly- 
porus.—E. Mrap Witcox. 
Pteridophytes of southern Florida.—Eaton?* has put on record his observa- 
tions on the pteridophytes of southern Florida during three excursions 
purpose is to bring together the little-known species, with careful descriptions, 
so that they may be more readily recognized by students of the flora € paper 
is also a contribution to geographical distribution. Most of the stants described 
are ferns, among which is a new species of Tectaria.—J. M. C. 
*s BarBer, C. A., Studies in root parasitism. The haustorium of Santalum album. 
1. Early stages, up to penetration. Memoirs Depart. Agric. India I:no. 1. pp. 30. 
pls. 7. 1906. 
‘© Bor. GAzETTE 40: 159. 1905. 
17 BRAND, CHARLES J., A new type of red clover. U.S. Dept Agric., Bureau PI. 
Ind., Bites ins Pp- 45. pls. 3. 1906. 
ALD, F. D., Report on the 6a diseases uses in Nebraska during the 
Season = 1905. Hep: Neb. Exp. Sta. 19: 19-81 
79 HEALD, F. D., The black rot of a noe to Sclerotinia jructigena. Rep. 
Neb. Exp. Sta. 19: 82-91. pls. 1-2. 1906. 
2° HEALD, F. D., A disease of a cottonwood due to Eljvingia megaloma, Rep. 
Neb. Exp. Sta. res 92-100. pls. I 1906. 
at Bat Any Pte aad observed pars Hates Spciisings teks webert 
Florida. a pon Bot. Club 33: 455-486. 1 
