XXI 



Ramalay, Notes on dune Vegeta- 

 tion at San Francisco, Cali- 

 fornia. 285 



, The role of sedges in some 



Colorado plant communities. 297 



, Xerophytic grasslands at 



different altitudes in Colorado. 



297 



Rapaics, Botanische Notizen. 57 



Rannkiaer, Recherches statisti- 

 ques sur les formations vege- 

 tans. 298 



Robinson, A descriptive revision 

 of the Colombian Eupatoriums. 



286 



, Diagnoses and notes rela- 



ting to tropical American Eupa- 

 torieae. 286 



, Keyed recensions of the 



Eupatoriums of Venezuela and 

 Ecuador. 286 



Rock y Cyrtandreae Hawaiienses, 

 Sect. Crotonocalyces Hillebr. 



106 



, Cyrtandreae Hawaiienses, 



Sect. Microcalyces Hillebr. 286 



, Cyrtandreae Hawaiienses, 



Sections Schizocalyces Hillebr. 

 and Chaetocalyces Hillebr. 286 



, New species of Hawaiian 



plants. 287 



, Notes on Hawaiian Lobelioi- 



deae, with descriptions of new 

 species and varieties. 287 



Rosendahl, Tre f ör Norra Europa 

 nya Asplenier. 91 



Rosenthal, Monographie der Gat- 

 tung Daphniphyllum. Allgemei- 

 ner Teil. 365 



Ross, Die strahlenlose Kamille, 

 Matricaria suaveolens. 91 



Rowlee, Synopsis of the Genus 

 Ochroma, with descriptions of 

 new species. 299 



Rydberg, Fabaceae, Psoraleae. 299 



, Rosaceae (Conclusio). 300 



Safford, Notes on the Genus Dah- 

 lia, with descriptions of two new 

 species from Guatemala. 287 



Sampson, Climate and plant 

 growth in certain vegetative 

 associations. 288 



, Effect of grazing upon aspen 



reproduction. 288 



Sander, Dendrologisches Allerlei. 



9* 



Sargent, Notes on North American 

 Trees. II. Carya. 160 



, Notes on North American 



trees. III. Tilia. 1, 2. 122, 287 



, Notes on North American 



trees. IV, V. 301 



, Plantae Wilsonianae. 301 



Scharfetter, Beiträge zur Kenntnis 

 subalpiner Pflanzenformatio- 

 nen. 27 



, Die Murauen bei Graz. Ein 



Beitrag zur Kenntnis der Vege- 

 tation in Ueberschwemmungs- 

 gebieten. 58 



Schiller, Systematische Gliede- 

 rung der ungarischen Batra- 

 chien. 221 



Schlechter, Angraecum X Wolte- 

 rianum Schltr. 122 



, Die Ericaceen von Deutsch- 



Neu-Guinea. 396 



, Die Gattungen Grammato- 



phyllum Bl. und Grammangis 

 Rchb. f. 315 



, Die Gattung Houlletia 



Brongn. 398 



, Die Orchideen-Gruppe Di- 



chaeinae Pfitzers. (Eine Ueber- 

 sicht über die bisher bekannten 

 Arten). 398 



, Neue und seltene Garten- 

 Orchideen. VI— IX. 316, 399 



Schneider, A conspectus of Mexi- 

 can, West-Indian, Central and 

 South American species and 

 varieties of Salix. 317 



, Notes on American willows. 



I. The species related to Salix 

 aretica Pall. 317 



, Notes on American willows. 



II. The species related to Salix 

 glauca L. 317 



, Notes on American willows. 



III. A conspectus of American 

 species and varieties of Sections 

 Reticulatae, Herbaceae,Ovalifo- 

 liae, and Glaucae. '317 



, Notes on American willows. 



IV. Species and varieties of 

 Section Longifoliae. 317 



, Notes on American willows. 



V. The species of the Pleonan- 

 drae Group. 317 



, Tainiopsis Schltr., eine neue 



Gattung der Orchideen. 400 

 , Weitere Beiträge zur Kennt- 



