48 TAXONOMY OF VASCULAR PLANTS [Bot. Absts., Vol. VI, 



338. Benoist, R. Guenetia, genre nouveau de la famille de Tiliacees. [Guenetia, a new- 

 genus of the family Tiliaceae.] Bull. Mus. Hist. Nat. [Paris] 25: 387-389. 1919.— The author 

 publishes the genus Guenetia Sagot, with the single species, G. macrosperma Sagot, as new to- 

 science from French Guiana. — E. B. Pay son. 



339. Benoist, R. Les Licania (Chrysobalanacees) de la Guyane francaise. [The Licanias 

 (Chrysobalanaceae) of French Guiana.] Bull. Mus. Hist. Nat. [Paris] 25: 512 516. 1919.— 

 The author presents a resume of all the species of Licania known to occur in French Guiana. 

 The following new species and varieties are characterized : Licania heteromorpha Benth. var. 

 grandifolia, L. davillaefolia, L. cyathodes, L. canescens, L. leptostachya Benth. var. crassi- 

 folia (L. crassifolia Benth.), L. galibica, and L. pruinosa. — E. B. Pay son. 



340. Blake, S. F. A preliminary revision of the North American and West Indian avocados 

 (Persea spp.). Jour. Washington [D. C] Acad. Sci. 10: 9-21. 2 fig. 1920. — A list of five spe- 

 cies is given, of which two, Persea cinerascens and P. leiogyna, are described as new. — Helen 

 M. Gilkey. 



341. Blatter, E. Flora Arabica, Part 1. Ranunculaceae-Moringaceae. Rec. Bot. Surv. 

 India 8: 1-123. 1919.— A systematic and bibliographic enumeration of all known Arabian 

 plants of the families indicated following the Bentham and Hooker system. Specimens are 

 cited and the distribution of each species is indicated. There are no keys or descriptions. — 

 E. D. Merrill. 



342. Blatter, E., P. F. Hallberg, and C. McCann. Contributions toward a flora of 

 Baluchistan. Jour. Indian Bot. 1: 54-59. 1919. [To be continued.] — Notes on structure, 

 synonymy and distribution are given of species in the following genera: Clematis, Adonis, 

 Ranunculus, Cocculus, Berberis, Hypecoum, Fumaria, Arabis, Barbarea, Farsetia, Malcolmia, 

 Goldbachia, Sisymbrium, Brassica, Eruca, Capsella, Lepidium,Isatis, Physorhynchus, Cleome, 

 Maerua, Capparis and Ochradenus. The following species are described as new: Ranunculus 

 pseudomuricatus Blatt. & Hall., Goldbachia hispida Blatt. & Hall., and Cleome Hotsonii 

 Blatt. & Hall. Four species of Farsetia are listed without names. [See also next following 

 Entry, 343.]— A". M. Wiegand. 



343. Blatter, E., P. F. Hallberg, and C. McCann. Contributions towards a flora of 

 Baluchistan. Jour. Indian Bot. 1: 84-91, 128-138, 169-178, 226-236, 263-270. 1919-1920.— 

 A continuation of the flora, arranged according to Bentham and Hooker's system of classi- 

 fication, extending from Resedaceae to Euphorbiaceae. Tamarix longe-pedunculata and 

 Reaumuria panjgurica (Tamaricaceae), Fagonia spinosissima and Zygophyllum trialatum 

 (Zygophyllaceae), Dorycnium villosum, Indigofera paucifolioides, and Calophaca lomentosa 

 (Leguminosae), and Gaillonia macrantha (Rubiaceae) are described as new species. [See also 

 next preceding Entry, 342.] — Winfield Dudgeon. 



344. Boulenger, G. A. Some roses from Dorsetshire. Jour. Botany 58: 16-21. 1920. — 

 The paper contains notes made while spending a fortnight at Studland in 1919. Some forms 

 could not be placed exactly in Major Wollet-Dod's summary of the knowledge of British 

 roses. Extended notes are given on R. ptychophylla, R. arvensis var. major Coste, R. arvensis 

 X micrantha f, R. canina var. oblonga (two other varieties of R. canina are noted and keyed), 

 and R. micrantha var. Lusseri (related to R. rubiginosa). Of these R. ptychophylla, a relative 

 of R. stylosa, is described as new, and R. canina var. oblonga (Desc'gl. & Rip.) as a new combi- 

 nation. — K. M. Wiegand. 



345. Breakwell, E. A remarkable fodder plant. Shearman's clover (Trifolium fragi- 

 ferumvar.). Agric. Gaz. New South Wales 31: 245-250. 4 fig. 1920.— See Bot. Absts. 5, Entry 

 1109. 



346. Breakwell, E. Popular descriptions of grasses. The Chloris grasses. Agric. Gaz. 

 New South Wales 31: 309-314. Fig. 1-4. 1920— See Bot. Absts. 6, Entry 6. 



