Index to Recent Literature 319 



Peck, C. H. Report of the State Botanist on edible Fungi of New 

 York, 1895-1899. Mem. N. Y. State Mus. 3: 131-234.//. 44-68. 

 1901. 



Piper, C. V. New and noteworthy Northwestern Plants. Bull. Torr. 



Club, 28: 39-45. 31 Ja. 1901. 



New species in Arabis, Trifolium, Astragalus, Solidago, Erigeron, Antennaria, 

 Artemisia, Crepis, Dodecatheon, Gilia, Phacelia, Lappula, and Mimidus. 



Rennert, R. J. Teratology of Arisaema. Bull. Torr. Club, 28 : 247- 



250. 18 Ap. 1901. [Illust.] 

 Rolfe, R. A. Habenaria repens Nutt. Hook. Ic. Plant. IV. 7 : //. 



2686. F. 1901. 



Native of America, from South Carolina to Brazil. 



Rolfe, R. A. Gymnopodium floribundum Rolfe. Hook. Ic. Plant. IV. 

 7 : //. 2699. F. 1 90 1. 



A new monotypic genus, from British Honduras. 



Rothrock, J. T. The Willow Oak and swamp Hickory. Forest Leaves. 



8: 24. Ap. 1901. [Illust.] 

 Rydberg, P. A. Further Studies on the Potentilleae. Bull. Torr. 

 Club, 28 : 173-183. 27 Mr. 1901. 



P. horrida, P. New Species in Potentilla (10), Horkelia, and Drymocallis. 



Rydberg, P. A. Studies on the Rocky Mountain Flora. — III. Bull. 

 Torr. Club, 27: 614-636. 29 D. 1900. 



New species in Stenotus (2), Ma crone ma (2), Sideranthus (3), Pyrrocoma (5) 

 Balsamorrhiza (2), Thelesperma (2), Hymenopappus (4), and a new genus Stenotopsis. 



Rydberg, P. A. Studies on the Rocky Mountain Flora. — IV. Bull. 

 Torr. Club, 28 : 20-38. 31 Ja. 1901. 



New species in Arnica (2), Artemisia, Picradenia, Antennaria, Aster, Tmvnsendia, 

 Erigeron (3), Valeriana, Campanula, Castilleja (3), Stimulus, Pedicularis, Pent- 

 stemon (2), Polemonium (2), Gilia, Phacelia, Lappula, Cryptanthe, Mertensia (4), 

 Jmpatiens, Geranium, Lupinus (2), Astragalus (2), Trifolium, and Lathy 1 us. 



Sargent, C. S. Notes on a Collection of Crataegus made in the Prov- 

 ince of Quebec near Montreal. Rhodora, 3: 71-79- Ap. 1901. 



C. suborbiculata, C. Canadensis, C. anomala, C. densijlora, C. Laurentiana and 

 C. integriloba, new. 



Saunders, C. F. The climbing Fern in Spring. Fern. Bull. 9 : 30, 



31. Ap. 1901. [Illust.] 

 Schumann, K. Chilenische Kakteen. Monats. fur Kakteenkunde, II: 



5~9- *5 J a - I 9° I \ 26-29. 15 Feb. 1901 ; 43~45- J 5 Mr. i9 QI - 

 [Illust.] 

 Schumann, K. Pilocereus Schottii Lem. Monats. fur Kakteenkunde 



II: g— 11. 15 Ja. 1901. [Illust.] 



Setchell, W. A. Notes on Algae. I. Zoe, 5 : 1 21-129. 190 1. 



New species in Lawinaria, Ilcdophyllum gen. nov. (2), Pleurophycus gen. nov., 

 Iridaea. Fauchea, Constantinea* and Weeksia een. nov. 



