No. 1, July, 1920] TAXONOMY, VASC. PLANTS 265 



all, from A. Zapota, but from other species of the genus ami from other genera of the same 

 family, Sapotaceae. Under the genus Achraa, which has previously been considered mono- 

 typic, two new species are described. — Helen M. Gilkey. 



1756. PuGSLBT, II. \V. A revision of the genera Fumaria and Ruplcapnos. Jour. Linn. 

 Soc. Bot. London 44: 233-355. PI. 9-16. 1919. — A critical revision of all species of Fumnrui 

 and Riipicapnos, with a general discussion of the distribution and habitats of the genera as a 

 whole. A few notes on soil preference are given. In Fumaria 7 new species and is new varie- 

 ties are described, and in Riipicapnos, 7 new species and 2 new varieties. — A. J. Eames. 



1757. Purpus, J. A. Phyllocactus (Epiphyllum) chiapensis J. A. Purp. spec. nov. 

 Monatsschr. fur Kakteenkunde 28: 118-121. 1918. — Phyllocactus chiapensis is described and 

 illustrated as new to science from specimens collected by C. A. Purpus in the state of Chiapas, 

 Mexico, in 1913. — J. M. Greenman. 



1758. Rehder, Alfred. New species, varieties and combinations from the herbarium 

 and the collections of the Arnold Arboretum. Jour. Arnold Arboretum 1 : 44-60. July, 1919. — 

 After an introduction discussing some doubtful points of nomenclature chiefly as regards 

 articles 45, 47 and 50 of the International rules and the nomenclature of varieties and hybrids, 

 a systematic enumeration of new species and new combinations is given. Taxus chinensis 

 (Pilger) and Carpinus Handelii are new species from China, Larix Henryana is a new name 

 for a hybrid between L. decidua and L. Kaempferi. The following are new combinations: 

 Pseiidolarix amabilis (J. Nelson), Abies spectabilis var. brevifolia (A. Henry), Sasa Veitchii 

 (Carr.), S. Veitchii f. minor (Makino), »S. senanensis (French. & Sav.), S. senanensis f. nebulosa 

 (Makino) and S. senanensis var. stenantha (Makino). Besides these many new f combinations 

 of horticultural forms and varieties appear under the following species: Cupressus lusilanica, 

 Chamaecyparis oblusa, Abies homolepis, X A. insignis, A. alba, A. lasiocarpa, Picea Abies, 

 P. glauca, Betula pcndula. For the Chinese Carya cathayensis a new station is recorded. 

 [See also next following Entry, 1759.] — Alfred Rehder. 



1759. Rehder, Alfred. New species, varieties and combinations from the herbarium and 

 the collections of the Arnold Arboretum. Jour. Arnold Arboretum 1:121-146. 1919. — The 

 present article contains new combinations and some new names in the genera Castanopsis, 

 Lithocarpus, Quercus, Ulmus, Calycanthus and Benzoin, critical notes on Quercus dentata, 

 Zelkoiva serrata, Litsea sericea and on the nomenclature of Ulmus procera, a new horticultural 

 form and a new binomial for a garden hybrid of Mahonia, and the following new varieties and 

 forms: Quercus aliena var. pubipes, Ulmus laciniata var. 7iikkoensis, U. pumila var. pilosa, 

 Morus mongolica var. vestita and Umbellularia californica f. pendula. [See also next pre- 

 ceding Entry, 1758.] — Alfred Rehder. 



1760. Rehder, Alfred, and E. H. Wilson. New woody plants from the Bonin Islands. 

 Jour. Arnold Arboretum 1: 115-121. 1919. — The following species and one variety are 

 described as new to science: Cyphokentia Savoryana, Ficus Iidaiana, Evodia Kumagaiava, 

 Symplocos Olomoi, S. boninensis and Zanthoxylum ailanthoides var. inerme. A new com- 

 bination is Calpidia Nishiiimrae (Pisonia Nishimurae Koidzumi). — Alfred Rehder. 



1761. Robinson, B. L. An unusual Daucus Carota. Rhodora21: 70-71. 1919. — Descrip- 

 tion of an unusual specimen of this species in which nearly half of the compound umbel has 

 petals of a rich, deep violet shade. — James P. Poole. 



1762. Robinson, B. L. I. On tropical American Compositae, chiefly Eupatorieae. [Con- 

 trib. Gray Herb. Harvard Univ. New Ser. 60: 1-88.] Proc. Amer. Acad. Arts and Sci. 55: 3-11. 

 1919. — The following species, varieties and forms new to science are characterized: Ophryo- 

 sporris bipinnalifidus , 0. ovatus, Eupatorium anisodonlum, E. Aristei, E. Bridgesii, E. chori- 

 cephaloides, E. coelocaule, E. Cookii, E. dasyneurum, E. drepanoides, E. endytum, E. eripsi- 

 mum, E. flexile, E. Gascae, E. Gilberlii, E. gloeocladum, E. gracilcntum, E. hylophilum, E* 



