159 
Pammel, L. H. Some obnoxious Weeds of Iowa. Rep. Iowa State 
Agric. Soc. 1893: 437-442. 1894. 
Praeger, R.L. Juncus tenuis Willd. Journ. Bot. 33: 86. Mr. 1895. 
Allusion to its occurrence in Ireland, 
Reiche, K. Zur Kenntniss der Chilenischen Arten dur Gattung Oxa/is. 
Engler’s Bot. Jahrb. 18: 259-305. p/. 9. 1894. 
Ridgway, R. Additional Notes on the Native Trees of the Lower 
Wabash Valley. Proc. U. S. Nat. Mus. 17: 409- 421. 1894. 
Measurements given of many species. 
Robertson, C. The Philosophy of Flower Seasons and the phaeno- 
logical Relations of the entomophilous Flora and the anthophilous - 
Insect Fauna. Am. Nat. 29: 97-117. ~/. 8-10. F. 1895. 
Rolfe, R. A. New Orchids. Kew. Bull. 1894: 361, 363, 364, 392, 
393-395. 1894. 
Descriptions of a large number of Runhans species. 
Sargent, C. S. Notes on North American Oaks. Gard. & For. 8: 
92-93. f. 13-14. 6 Mr. 1895. 
Description and illustration of a new oak; Quercus Toumey?, from the hills of 
Southeastern Arizona. 
Sargent, C. S., Editor. The Forests of the Wabash Va alley. Gard. & 
For. 8: 101-102. f. 46-17. 13 Mr. 1895. 
Saunders, De A. A preliminary Paper on Costaria with Description 
of a new Species. Bot. Gaz. 20: 54-58. f/. 7. 16 F. 1895. 
C. reticulata from California. 
Schilling, A. J. Anatomisch-biologische Untersuchugen iiber die 
Schleimbildung der Wasserpflanzen. Flora, 78: 280-364. 4 Je. 1894. 
Schlichter, R. Britrige zur Kenntniss Siidamerikanischen Asclepia- 
daceen. , Beibl. Engler Bot. Jahrb. 18: Hft. 4. 1-37. 22 Je. 1894. 
Schumann, K. Aariota salicornioides. Monatss. Kakteen K 5: 
22-20. figs. F. 1895. 
Scribner, F. L. Giant Knotweed or Sachaline. Cir. Div. 
S. Dept. Agric. 5: pp. 4. f. 3. 1895. 
Discusses Polygonum Sach dinense and its value as a forage plant. 
Scribner, F. L. The Flat Pea (Lathyrus sylvestris Wagneri.) Cir. 
Div. Bot. U. S. Dept. Agric. 4: pp. 7./. 2. 1895. 
Small, J. K., and Vail, A. M. Report on the Botanical Exploration 
of Southwestern. Virginia during the Season of 1892. Mem. Torr. 
Club, 4: 93-201. p/. 75-82. 1893-1894. 
Enumeration of several hundred species and descriptions of the following as new : 
Trifolium Virginicum, Rudbeckia Brittonti and Asterina Leemingtae. 
Bot. U. 
