320 TAXONOMY OF VASCULAR PLANTS [BoT. Absts., Vol. VII, 



2188. Williams, C. B., W. F. Pate, E. C. Blair, S. C. Clapp, and F. J. Meacham. 

 Relative value of acid phosphate and rock phosphate on North Carolina soils. Bull. North 

 Carolina Dept. Agric. 4P: 3-22. Fig. 13. 1920. — Relative availability is indicated by crop 

 yields where acid phosphate or rock phosphate was used with either stable manure, lime, or 

 the common mineral fertilizer elements. — F. A. Wolf. 



2189. Wrangel, Margarete. Ein estlandisches Rohphosphat und seine Wirkung auf 

 verschiedene Pflanzen. [An Esthonian raw phosphate and its effect upon various plants.] 

 Landw. Versuchssta. 96: 1-44. PI. 1-3. 1920. — Comparisons of Esthonian phosphate with 

 Thomas phosphate, appatite, phosphorite, staffelite, dicalcium and tricalcium phosphates 

 show it to be more available than the other raw phosphates. Pot experiments conducted at 

 Hohenheim showed that plants differ considerably in their ability to utilize raw phosphates. 

 Mustard, buckwheat, clover, rape, and vetch showed best results. With these plants the 

 Esthonian raw phosphate about equalled the Thomas phosphate. Rye, flax and maize showed 

 little ability to utilize the raw phosphates. — A. T. Wiancko. 



TAXONOMY OF VASCULAR PLANTS 



J. M. Grebnman, Editor 

 E. B. Payson, Assistant Editor 



SPERMATOPHYTES 



2190. Anonymous. Decades Kewenses. Decas XCVI. Bull. Misc. Inf. Kew 1920: 108- 

 112. 1920. — The following species are described as new: Miliusa dolichantha Craib, Vatica 

 Shingkeng Dunn, Rubus Burkillii Rolfe, Eugenia arborensis Dunn, Begonia arborensis Dunn, 

 B. Burkillii Dunn, B. iridescens Dunn, B. scintillans Dunn, Sadiria Boweri Dunn, Arundi- 

 nella intricata Hughes. — E. Mead Wilcox. 



2191 Anonymous. Decades Kewenses. Decas XCVII. Bull. Misc. Inf. Kew 1920: 132- 

 136. 1920. — The following species are described as new : Rubus chambica Rolfe, Brassaiopsis 

 magnifica Dunn, Ophiorhiza heterostyla Dunn, Psijchotria arborensis Dunn, Agapetes mar- 

 ginata Dunn, A. nutans Dunn, Buddleia Candida Dunn, Aeschynanthus monetaria Dunn, 

 Rhinacanthus grandiflorus Dunn, Gomphostemma arborensis Dunn. — E. Mead Wilcox. 



2192. Anonymous. New orchids: Decade XL VII. Bull. Misc. Inf. Kew 1920: 128-132. 

 1920. — The following species are described as new: Eulophia Huttonii Rolfe, E. Boltonii 

 Harv. & Rolfe, Lissochilus Rehmannii Rolfe, L. transvaalensis Rolfe, Polystachya natalensis 

 Rolfe, Phalaenopsis latisepala Rolfe, P. Micholitzii Rolfe, Angraecum Hislopii Rolfe, A. 

 Bolusii Rolfe, Brownleea Fannihiae Rolfe. — E. Mead Wilcox. 



2193. Benoist, Raymond. Descriptions d'especes nouvelles de Phanerogames. [De- 

 scriptions of new species of Phanerogams.] Bull. Mus. Hist. Nat. [Paris] 26: 184-188. 1920. 

 — The following species are described as new to science: Ononis zaiana, Bathysa difformis, 

 Hypoestes longispica, H. capitata, H. multispicata, H. comosa, and H. oppositiflora. — E. B. 

 Payson. 



2194. Britton, N. L., and J. N. Rose. The Cactaceae, descriptions and illustrations of 

 plants of the Cactus family. Vol. II. 23 x 29 cm., Jfi pi. {32 colored), 305 fig. Carnegie Inst. 

 Washington Publ. 248. Vol. II. Sept. 9, 1920. — The subtribes, Cereanae and Hylocereanae 

 of the tribe Cereeae, are treated in this volume. Forty-seven genera and 276 species are 

 recognized and are described fully with complete bibliography, type locality, distribution 

 and list of previously published illustrations. There are 19 new genera, as follows : Arrojadoa, 

 Binghamia, Brachycereus, Browningia, Corryocactus, Deamia, Dendrocereus, Erdisia, Espostoa, 

 Facheiroa, Jasminocereus, Leocereus, Machaerocereus, Mediocactus, Monvillea, Neoraimondia, 

 Stetsonia, Wilmattea, and Zehntnerella. — There are 48 new species, as follows: Acanthocereus 



I 



