INDEX TO AMERICAN BOTANICAL LITERATURE 397 
Riddle, L. W. Geographical distribution of lichens in Maine. Bull. 
Josselyn Bot. Soc. Maine 4: 9, 10. Ap I9g1t. 
Abstract of paper. . 
Robinson, C. B. Philippine Urticaceae. Philip. Jour. Sci. 5: (Bot.) 
465-543. D 1910.; 6: (Bot.) In3 1. $1) 1-3.” Mr-1917,. 
Includes descriptions of 57 new species and 2 new genera. 
Rockwell, F.I. The white pines of Montana and Idaho—their distribu- 
tion, quality and uses. Forest. Quart. 9: 219-231. Je 1911. 
Rolfe,R.A. Cattleya Rex. Curt. Bot. Mag. IV.7: pl.8377. Je1g11. 
Originally discovered on the western slope of the Peruvian Andes. 
Rolfe, R. A. Oncidium Sanderae. Curt. Bot. Mag. IV. 7: pl. 8374. 
My 1o11. 
Rosendahl, C. O., & Butters, F.K. Guide to the ferns and fern allies 
of Minnesota. Minnesota Plant Studies 3: 1-23. Jl 1909. [Illust.] 
Includes 3 pages of introduction on general features of ferns. 
Rugg, H.G. Cyrus Guernsey Pringle. Am. Fern Jour. 1: 114, 115. 
7 Au 1911. 
Rusby, H. H. Some floral features of Mexico. Torreya 11: 77-84. 
f. 1-3. 19 Ap 1911; 11: 110-117. pl. 4-7. My 1gi1t. 
Saccardo, P. A. Notae mycologicae. Ann. Myc. 9: 249-257. 1 Je 
IQII. : 
Includes new American species in Phoma, A posphaeria, Sphaeronaema, Stagon- 
ospora, and Sclerotium. 
Schaffner, J. H. Leaf markings of plants. Am. Bot. 17: 5-10. F 
1911, 
Schlechter, R. Orchidaceae novae et criticae. Decas XXI._ Repert. 
Sp. Nov. 9: 289-294. 10 My sap 
ine seg Ornithidium parvulum, Oncidium Cabagrae, and Telipogon Biolleyi spp. 
v. from Costa Rica and Stelis teas epee p- nov. from Guatemala. 
denies F. Lamson-. Notes on certain species of Muhlenbergia. Bull. 
Torrey Club 38: 319-328. 27 Ji XOUr. 
Includes palpate ge polycaulis and M. curtifolia spp. nov. and M. curtifolia 
Griffithsii subsp 
Seaver, F. J. srtatl N. Am. Fl. 3: 57. 29 D i910. 
Seaver, F. J. Hypocreaceae. N. Am. Fl. 3: 31-56. 29 D 1910. 
Seaver, F. J. Hypocreales. N. Am. FI. 3: 1.. 39 D 1910, 
Seaver, F. J. Nectriaceae. -N. Am. FI. 3: 3-30. 29 D 1910. 
Includes Scoleconectria telraspora sp. nov. 
Sharp, L. W. Nuclear phenomena in Puccinia Podophylli. (Prelimin- 
ary note.) Bot. Gaz. 51: 463, 464. 19 Je 1911. 
