InpEX TO RECENT LITERATURE 701 
Rothrock, J. T. Slippery Elm. (U/mus fulva Michx.) — Forest 
Leaves, 8: 136. Je rgo2. [lIllust.] 
Rothrock, J.T. The Washington Thorn. (Crataegus cordata (Mill. ) 
Ait.) Forest Leaves, 8: 88. D 1901. [Illust.] 
Rothrock, J. T. Water Beech, Hornbeam. ( Carpinus Caroliniana 
Walt.) Forest Leaves, 8: 40. Je 1gor.  [Tllust.] 
Rothrock, J. T. Wild Yellow or Red Plum. (Prunus Americana 
Marshall.) Forest Leaves, 8: 88. D igor.  [Illust.] 
Rusby, H. H.’ Vegetable Foods. Jour. N. Y. Bot. Gar. 4: 176~ 
186. O 1903. 
Schuette, J. H. The Hawthorns of Northeastern Wisconsin. Proc. 
Biol. Soc. Wash. 16: 91-97. 25 Je 1903. 
Includes one new species. 
Seemen, O. von. Three New Willows from the Far West. Bull. Tor- 
rey Club, 30: 634-636. 4N 1903. 
Two new species of Sadix from California and one from Nevada. 
Small, J.K. The Habitats of Polypodium polypodioides. Torreya, 3: 
I4I. 265 1903. 
Underwood, L. M. The Early Writers on Ferns and Their Collec- 
tions. —I. Linnaeus, 1707-1778. Torreya, 3: 145-150. 30 O 
1903. 
Van Tieghem, P. Quelques espéces nouvelles d’Ochnacées. Bull. 
Mus. Hist. Nat. Paris, 9: 30-35, 73-89, 156-165. 1903. 
Includes new Brazilian species in P&couratea (3), Ouratea and Trichouratea. 
Waters, C. E. Some Abnormal Flowers of the Wild Columbine. 
Plant World, 6: 244, 245. pf. 77. O 1903. 
Weber, A. Les Cactées de Costarica. Bull. Mus. Hist. Nat. Paris, 
8: 454-469. 1902.  [lllust.] 
New species and varieties are described in Cereus (9), Phyllocactus (5), Rhipsalzs 
(2) and Pereshia. 
Weber, A. Notes sur quelques Agaves du Mexique occidental et de la 
Basse-Californie. Bull. Mus. Hist. Nat. Paris, 8: 218-224. 1902. 
Includes descriptions of two new species, Agave fegui/ana and A. Datylio. 
Wentworth, L. A. Two Plants New to the Flora of Lynn, Massachu- 
setts. Rhodora, 5: 256, 257. 13 O 1903. 
Wilcox, E. M. Notes on Troublesome Insects and Plant Diseases. 
Oklahoma Agric. Exp. Sta. Rep. 10: 112-128. f. 1-5. 1901. 
Wildeman, E. de. elicteres ovata Lamk. Ic. Sel. Hort. Thenensis, 
4: 53-56. pl. 7372. Ap 1903. 
Native of central Brazil. 
