INDEX TO AMERICAN BOTANICAL LITERATURE 665 
Newcombe, F. C. Thigmatropism of terrestrial roots. Beih. Bot. 
Centralbl. 17: 61-84. 1904. 
Osmun, A. V. Lguisetum variegatum in Connecticut. Fern Bull. 12: 
89. [Au] 1904. 
Overton, J. B. Ueber Parthenogenesis bei 7hahictrum purpurascens. 
Ber. Deuts. Bot. Gesells. 22: 274-283. pi. 75. 23 Je 1904. 
Pampanini, R. Sassifragacee dell’Erbario Webb. Nuovo Géiorn. 
Bot. Ital. II. rm: 79-82. 15 Mr 1go4. 
Among the specimens listed are plants from South America collected by Pavon, 
Gardner, eels and others. 
Parish, S. B. Additions to the California fern flora. Fern Bull. 12: 
82, 83. [Au] 1904. 
Penhallow, D. P. The anatomy of the North American Coniferales, 
together with certain exotic species from Japan and Australasia. Am. 
Nat. 38: 243-273. f. 7-16. 16 Je 19043 331-359. f. 77-jr. 1 
Au 1904; 523-554. /. 92-49. 305 1904; 691-723. N 1904. 
Petri, L. Osservazioni sul genere Zylostoma Pers. Nuovo Giorn. 
Bot. Ital. Il. 12: 53-69. 15 Mr1g04._ [Illust.] 
Piccioli, L. II legno e la corteccia delle Cistacee. Nuovo Giorn. 
Bot. Ital. II. 11: 473-504. f. 7-20. 29 O 1904. 
Pilger, R. Beitrage zur Kenntnis der monécischen und diécischen 
Gramineen-Gattungen. Bot. Jahrb. 34: 377-416. fl. 5, 6. 16 
Au 1904. 
Polley, J. M. Observations on Physalacria inflata (S.) Peck. Minn. 
Bot. Stud. 3: 323-328. f/f. 537. 18 O 1904. 
Price, S. F. Contribution toward the fern flora of Kentucky. Fern 
Bull. 12: 65-70. [Au] 1904. 
Prince, S.F. Some ferns of the cave region of Stone County, Missouri. 
Fern Bull. 12: 72-77. [Au] 1904. 
Rettig, E. Ameisenpflanzen-Pflanzenameisen. Ein Beitrag zur Kennt- 
nis der von Ameisen bewohnten Pflanzen und Beziehungen zwischen 
beiden. Beih. Bot. Centralbl. 17: 89-122. 1904. 
Rolfe, R. A. Epidendrum Endresit, Orchid Rev. 12: 145. f. 2¢4. 
190 
Native of Costa Rica. 
Rolfe, R. A. Preroglossaspis ecristata. Orchid Rev. 12: 136. My 
1904. 
Refers the Floridian orchid Cyrtopodium ecristatum Fernald ( Triorchos ecristatus 
Small, Eulophia ecristata Ames) to the African genus Pteroglossaspis. 
