516 INDEX TO AMERICAN BOTANICAL LITERATURE 
Rehm, H. Ascomycetes Exs. Fasc. 44. Ann. Myc. 7: 399-405. 10N 
1909. 
Includes several species from Brazil. 
Rehm, H. Ascomycetes Exs. Fasc. 46. Ann. Myc. 8: 298-304. 15 Je 
IQIO. 
Includes several American species. 
Robinson, C. B. Philippine contact-poisonous plants. Bull. Manila 
Med. Soc. 3: 5,6. Ja 191. 
Rorer, J. B. Bud-rot of coconut palm. Bull. Dept. Agr. Trinidad 9: 
[3-5.] Ap 1910. 
Rorer, J. B. The green muscardine of froghoppers. Proc. Agr. Soc. 
Trinidad 10: 467-482. pl. r. 10 D 1910. 
Discusses a disease of sugar cane caused by Metarrhizium Anisopliae Sorokin. 
Rorer, J. B. Pod-rot, canker, and chupon-wilt of cacao caused by 
Phytophthora sp. Bull. Dept. Agr. Trinidad 65: 1-42. pl. 9-17- 
Jl 1910. 
Rorer, J. B. The relation of black-rot of cacao pods to the canker of 
cacao trees. Bull. Dept. Agr. Trinidad 9: Ap 1910. 
A reprint without pagination. 
Rorer, J. B. The witch broom disease of cacao in Surinam. Bull. 
Dept. Agr. Trinidad 9: [3-8.] Ap 1910. 
Rosenvinge, L. K. On the marine algae from northeast Greenland 
(N. of 76° N. Lat.) collected by the “Danmark-Expedition.” Meddel- 
elser om Grénland 43: 93-133. f. I-9. 1910. 
Safford, W.E. The genus Annona: the derivation of its name and its 
taxonomic subdivisions. Jour. Washington Acad. Sci. 1: 118-120. 
ey FOTt; 
Schneider, A. Coca leaves. Western Druggist (1-15). f, I-5f 
1898. ; 
Schuette, J. H. Contribution on wild and cultivated roses of Wisconsin 
and bordering states. Proc. Am. Assoc. Adv. Sci. 46: 278, 279: 
1897. : 
Setchell, W. A. Some unreported Alaskan Sphagna, together with - 
summary of the cryptogamic work of the University of Californié 
botanical expedition to Alaska in 1899. Univ. Calif. Pub. Bot. 2° 
309-315. 27S 1907. 
Shaw, C.H. A principle of elementary laboratory teaching for culture 
students, Science II. 28: 349-351. 11 5 1908. | | 
Smith, E. F. Observations on a hitherto unreported bacterial disease 
D 
