132 UNCLASSIFIED PUBLICATIONS [BoT. Absts., Vol. X, 



842. RiDDELSDELL, H. J. The British Rubus-list. Jour. Botany 59: 17^175. 1921.— 

 Comments are presented on a small manuscript note book completed by the late Rev. W. Moyle 

 Rogers, containing a list of British Rubi, revised and rearranged to April, 1917. — 

 S. H. Burnham. 



843. Sargent, Oswald H. A new Caladenia from West Australia. Jour. Botany 59: 

 175-176, 1921, — Caladenia Doutchae is described as new to science. — S. H. Burnham. 



844. Sedgwick, L. J. New Bombay species. Jour. Indian Bot. 2: 123-131. S^gr. 1921.— 

 Leucas angustissima, Christisonia flammea, Phyllanthus Talhoti, Ceropegiafantastica, Boucer- 

 osia truncato-coronata, and Canscora stricta are described as new species from the Bombay 

 Presidency, India. — Winfield Dudgeon. 



845. SoEST, J. L. VAN. Anthoxanthum odoratum L. Nederland. Kruidk. Arch. 1920: 

 140-144. 1921. — The author gives a summary of the principal forms found in the Netherlands, 

 The subvar. suhglabrum and the subvar. eu-villosum, into which the var. villosum Loisel, is 

 divided, are new. — W. H. Wachter. 



846. Trelease, William. A natural group of unusual black oaks, Proc. Amer. Phil. 

 Soc. 60: 31-33. PI. 2-4. 1921. — Three black oaks of the southern Mexican mountains were 

 found to bear their fruit in racemes, or, more properly, spike-like clusters. These possess the 

 characters of the section Erythrobalanus but differ from most black oaks and agree with all 

 white oaks in maturing their fruit in the course of the season of flowering, instead of deferring 

 fertilization and maturing for a year. These 3 new species, Quercus Urbani, Q. radiata, 

 and Q. Conzaitii, are described and grouped in the new section Racemiflorae. — Wanda Weniger. 



847. WoLLEY-DoD, A, H. Rosa spinosissima X rubiginosa X f. cantiana forma nova. 

 Jour. Botany 59: 178. 1921. 



848. YuNCKER, Truman George. Revision of the North American and West Indian 

 species of Cuscuta, Illinois Univ. Biol. Monogr. 6: 1-141. PI. 1-13. 1920. — A critical study 

 of the material of the genus available in the larger herbaria of this country was made. Fifty- 

 four species are treated, of which 26 are found in the U. S. A. Fourteen species and 16 varie- 

 ties are described as new. The classification of Engelmann was closely followed by the author. 

 The morphology of the different organs is treated in detail. It was found that the flower 

 offered the best characters for the differentiation of species since it was least affected by the 

 parasitic habits of the plant. Many detailed drawings of flower parts are presented in the 

 13 plates. Notes are given on the habits of the species. It was found that although some 

 species more commonly occur on certain host plants there is no constancy in this respect and 

 that species cannot be based on their occurrence on specific hosts. Self parasitism was 

 noticed. The genus is divided into 3 subgenera on the basis of style and stigma characters. 

 Engelmann's subgenus Monogyna has the styles united; this subgenus contains a single species. 

 The subgenus Succuta is used as a designation to include those species having linear-elongated 

 stigmas as distinguished from the capitate stigmas of the subgenus Grammica. — The specific 

 treatment includes, in addition to an analytical description, a complete synonj-my and refer- 

 ences to the specimens examined. A complete bibliography is appended. An index of collec- 

 tions with the name of the collector and number of the species collected is presented at the 

 end of the thesis. — H. W. Anderson. 



MISCELLANEOUS, UNCLASSIFIED PUBLICATIONS 



B. E, Livingston, Editor 

 Sam F, Trelease, Assistant Editor 



849. AsHWORTH, J. H. The Edinburgh meeting of the British Association — local arrange- 

 ments. Nature 107: 590-591. 1921, 



