INDEX TO AMERICAN BOTANICAL LITERATURE 219 
Small, J. K. Exploration of southern Florida. Jour. N. Y. Bot. 
Gard. 8: 23-28. [Mr] 1907. 
Smith, F. G. Morphology of the trunk and development of the 
microsporangium of cycads. Bot. Gaz. 43: 187-204. p/. 10. 20 
Mr 1907. 
Solms-Laubach, H. Graf zu. Ueber unsere Erdbeeren und ihre 
Geschichte. Bot. Zeit. 65': 45-76. 1 Ap 1907. 
Many references to American species. 
Spalding, V. M. Notes on the vegetation of Box Cafion. Plant 
World 10: 11-17. f. 5, 6. [F] 1907. 
Spalding, V. M. Suggestions to ‘plant collectors. Plant World 10: 
40. [Mr] 1907. 
Sprague, T. A. Catophora coronata. Curt. Bot. Mag. IV. 3: i. 
61725. Mr 1907. 
Native of the Andes. 
Stapf, 0. Blepharocalyx spiraeoides. Curt. Bot. Mag. 1¥. 3: ff 
6123. Mr 1907. 
Native of Brazil. 
Strong, M. A. Further information regarding the occurrence of 
Dryopteris Filix-mas in Vermont. Rhodora 9: 27, 28. 25 F 1907. 
Sumstine, D. R. A new Lentinus from Pennsylvania. ‘Torreya 7: 
60, 61. 19 Mr 1907. 
Lentinus pulcherrimus sp. nov. 
Taylor, N. On some distribution factors in the Sierra Maestra, Cuba. 
Torreya 7: 49-55. 19 Mr 1907. 
Weingart, W. Bemerkungen zu Cereus Kalbreyerianus Wercklé n. sp. 
Monats. oo 17: 39, 40. 5 Mr 1907. 
Native of Colom 
Weingart, W. ere? Purpusii Weing. 0. sp. Monats. Kak- 
teenk. 17: 34-38. 15 Mr1go07. __ [Illust.] 
Native of Mexico. - 
Werckleé, C. Cereus Kalbreyerianus Wercklé n. sp. Monats. Kak- 
teenk. 17: 38, 39. 15 Mr 1907. 
Native of Colombia. ; 
Wercklé, C. Kakteen in Zentral-Columbien. Monats. Kakteenk. 
Ret £7520, 16 F 1907. 
Wheeler, L. A. Spring in Stony Park. Am. Bot. 12: 30~33- Mr 
1907. 
Whitman, C.0. The origin of species. Bull. Wis. Nat. Hist. Soc. 
I. 5: 6-14. Ja 1907. 
