416 Index to Recent Literature 



Greene, E. L. A new Arnica from Oregon. Torreya, I : 42, 43. 

 19 Ap. 1901. 



Arnica aurantiaca Greene ; A. crocina nora. nov. 



Greene, E. L. Derivation of Mimosa. Plant World, 4 : 95, 96. My. 

 1901. 



Grout, A. J. The Peristome — L Bryologist, 4 : 31,32. Ap. 1901. 

 [Illust,] 



Gruber, C. L. Naturalized or adventive Narcissi. Torreya, 1 : 43- 

 19 Ap. 1 90 1. 



Gruber. Ueber das Verhalten der Zellkerne in den Zygosporen von 

 Sporodinia grandis Link. Ber. deutsche bot. Gesellsch. 19: 51-55- 

 pi. 2. /. J -J5- 2 6 Mr. 1901. 



Halsted, B. D. The Asparagus Rust. Plant World, 4: 88-94- 

 /. 1-4. My. 1 90 1. 



Halsted, B. D. The Mignonette as Class Illustration for Ascent of 

 Sap. Torreya, 4: 56. 22 My. 1901. 



Harris, C. W. Lichens — Alectoria, Evernia, Ramalina. Bryologist, 

 4- 3 6 -39' [Ulust.] 



Heydrich, F. Die Befruchtung des Tetrasporangiums von Polysiphonia. 

 Ber. deutsche Bot. Gesellsch. 19 : 55-71. //. 3. f. 1-21. 26 Mr. 

 1901. 



Holferty, G. M. Ovule and Embryo of Potamogeto?i natans. Bot. 

 Gaz. 31 : 339-346.//. 2, j./. 1. 18 My. 1901. 



Holway, E. D. W. Mexican Fungi, III. Bot. Gaz. 31 : 326. 18 



My. 1901. 



New species in Uromyces (6), Puccinia (18), [/redo, Ravenelia, Endophyllum, 

 Stichospora and Coleosporium ( 3 ) . 



Holzinger, J. M. Grimmia Holzingeri once more. Bryologist, 4:24, 

 25. Ap. 1 90 1. [Illust.] 



Holzinger, J, M. Hypnum Bestii. Bryologist, 4 : 22-24. Ap. 190 1. 

 [Illust.] 



Howe, M. A. An Enumeration of the Hepaticae collected by R. s - 

 Williams, 1898-1899. Bull. N. Y. Bot. Garden, 2 : 101-105./'- 

 14. 27 My, 1 90 1. 



Includes Scapania imbricata^ new species. 



Howe, M. A. Remarks on the Use of Funaria hygrometrica in 

 Botanical Teaching. Torreya, 1 : 39-41. 19 Ap. 1901. 



