ABSTRACTS. 



543 



Cyrtostachys Renda, Blume. var. Diivivierianum, and col. pi. 

 By Ch. Pynaert {Ilev. Hort. Beige, t. xxvii. p. 145, No. 7,^ July 

 1901). — This genus contains one other species of Malay Arch., viz. 

 C. ferox, Lind. They have pinnate leaves, and the species described is 

 remarkable for its bright crimson petioles. — G. H. 



Cytisus (Brooms). By W. Goldring {Gard. Marj. 2,497, p. 579 ; 

 7/'9/01). — A descriptive account of all the finest species and varieties of 

 Cj/tisus in cultivation, with hints on their position in gardens and their 

 •culture. Illustrations m-e given of C. keiuensis, C. prcecox, and C. 

 scojjariics sulphureus.. — W. G. 



Daphne Verloti. By S. Mottet {Bev. Hort. pp. 304, 305 ; July 

 1901 ; two woodcuts). — Highly recommended as a dwarf spring-flowering 

 hardy shrub.— C. T. D. 



Darwin Tulpen. By K Krelage {Die Gart. p. 2-4; 5/10^ 1901).— 

 List of varieties, cultural notes, and uses, also coloured plate of Darwin 

 Tulips.— G. R. 



Dates : the Culture of the Date Palm. By Walter T. Swingle 

 (U.S.A. Dep. Agr. 1900, p. 453). — Statistics concerning the cultivation are 

 given. An Arab maxim says : The Date Palm must have her feet in 

 running water and her head in a burning sky." The conditions are dis- 

 cussed under which the tree may be grown and fruited successfully. They 

 may be found in some parts of Arizona and New Mexico. — C. W. D. 



Delphinium sinense. [Rev. Hort. p. 373 ; August 1901). — Note 

 on a large- flow^ered lilac variety and a spurless form resembling a double 

 Cineraria, both raised by E. Gauguin, horticulturist, at Orleans. — C. T. D. 



Depth of Cultivation in relation to Yield of Wheat. By M. X. 



Passerini (Aim. Ag. p. 293 ; June 25, 1901). — ^The best crop resulted from 

 land dug to a depth of half a metre. — C. H. H. 



Dianthus pelviformis. By S. Arnott (Gard. Chron, Xo. 762, 

 p. 97, fig. 31, 3 8/1901). — This species was obtained from Mr. Henkel of 

 Darmstadt. It is suitable for growing on rockwork. It bears a compact 

 head of red blossoms on a long stalk. — G. S.. S. 



Digitalis, certain hereditary Anomalies in. By A. Gallardo 

 (Bee. gen. Bot. xiii. p. 163, 1901 ; tigs. 39, 40, 41). — The author describes 

 abnormalities appearing in the flowers and inflorescences of Digitalis 

 purpurea, L., which he observed in a garden near Buenos A}Tes. A 

 varying percentage of the abnormalities came true from seed, but the 

 amount appeared to be related to the condition under which the new 

 generations were raised. The paper is illustrated by curves, which are 

 based on the numbers of stamens, and frequency of the occurrence of 

 such numbers as a means of arriving at a measurable relation between 

 the various forms obtained. — /. B. F. 



