INDEX TO AMERICAN BOTANICAL LITERATURE 305 
Mell, C. D. Purple basket willow. Am. Forestry 17: 280-287. My 
1911. [Illust.] 
Salix purpurea L. and varieties. 
Moxley, G. L. Some Southern California ferns. Am. Fern Jour. 1: 
82. 3. My ror. 
Neger, F. W. Ambrosiapilze—IV. Tropische Ambrosiapilze. Ber. 
Deuts. Bot. Gesells. 29: 50-58. 30 Mr tort. ‘ 
Newcombe, F. C. [Botanical teaching:] Discussion. Science II. 
33: 646-649. 28 Ap IgII. 
Niedenzu, F. De genere Mascagnia. Arb. Bot. Inst. Kgl. Lyc. Hosi- 
anum in Braunsberg 3: 1-29. 8 
Diagnoses of the new species are reprinted in Repert. Sp. Nov. 9: 267-273. 
I Ap IQII 
Osterhout, G. E. Senecio lanatifolius Osterhout. Muhlenbergia 7: 
47, 48. 27 Ap igri. 
Pardé, L. Enquéte sur l’acclimatation des essences exotiques en 
France. Bull. Soc. Dendr. France 19: 5-12. 15 F 1911. [Illust.] 
Pax, F. Plantae novae bolivianae—V. Repert. Sp. Nov. 9: 229-235. 
5 Mr tort. 
Includes Piperaceae by C. de Candolle. 
Prescott, A. The oak and beech ferns. Fern Bull. 19: 9-11. [Ap] 
IQII. 
Pring, G. H. Orchids of the Missouri Botanic Garden. Orchid Rev. 
18: 141-143. My 1910. 
Purpus, J. A. Mamillaria Sartorii J. A. Purpus sp. nov. Monats. 
Kakteenk. 21: 50-53. 15 Ap 1911. [Illust.] 
Rick, J. Fungi austro-americani fasc. XI-XVIII. Ann. Myc. 9: 
175-184. Mr iogtt. 
[Rolfe, R. A.]  Brasilian orchids. Orchid Rev. 18: 327, 328. N 1910. 
[Rolfe, R. A.] Cattleya Warscewicsii alba. Orchid Rev. 18: 232, 233. 
fe i4.° Aw toto. 
Rolfe, R. A. Trevoria Lehmanni. Orchid Rev. 18: 297-299. f. 18. 
O 1910. 
Rose, J. N. Burseraceae. N. Am. Fl. 25: 241-261. 6 My IgII. 
Includes descriptions of the following new species: Elaphrium epinnatum, E. 
occidentale, E. Covillei, E. confusum, E. brachypodum, E. Esau. tum, E. quere- 
tarense, E. Goldmani, Icica Ms agrans, I. sessiliflora, I. ape I. costaricensis, I. con- 
ttenuata. 
fusa, I. Pittieri, I. lucid . Palmeri, I. panamensis, and I. 
se 
Rose, J. N. Studies a Mexican and Central American plants—No. 7 
