638 JOURNAL OF THE EOYAL HORTICULTURAL SOCIETY. 



sent to Mr. John Tremayne. Heligan, Cornwall. It is usually considered 

 tender, but at Fola in Co. Cork it has withstood 25 of frost with but 

 little injury. In Cornwall it is largely planted in woods and shrubberies, 

 and presents a lovely sight in July when covered with its large pale 

 sulphur flowers, which are about three inches in diameter and give the 

 trees the appearance of clouds of bright yellow, while the effect by moon- 

 light is particularly charming. — E. T. C. 



CostUS Friedrichsenii, 0. G. Petersen. By R. Schumann 

 (Gartenflora, 1/12 03, p. 617; pL 1521). — A coloured plate and brief 

 description of a plant cultivated for some time in the Berlin Botanic 

 Gardens under the name Costus comosus, Roscoe. The native habitat of 

 this species is apparently not certainly known. — J. P. 



Cotton, Cultivation Of. By B. Edwards (Bull. Dep. Agr. Jam. 

 vol. ix. pt. 12, p. 177). — A series of extracts from various works dealing 

 with The History of the Brit. Col. 1793 ; from the Flora, and Trans- 

 actions of the Soc. of Arts, of Jamaica ; and from Botany of Cotton, &c. 



G. H. 



Cotyledon macrantha. By Ed. Andre (Rev. Hort. October 1, 1903. 

 pp. 452-3; coloured plate and woodcut). — Very handsome deep rose- 

 coloured flowers, borne in ramose panicles. Highly recommended for dry 

 temperate or Cactus house, in which it is of easy culture. — C. T. D. 



Cotyledon (Echeveria) pulvinata. By Sir J. D. Hooker (Bot. 

 Mag. tab. 7918). — Nat. ord. Crassulacece. Native of Mexico. This 

 species differs from the majority of its congeners by the clothing of 

 velvety, silvery, white hairs, which turn brown on the branches and are 

 reflexed in age on the leaves. The flowers are yellow, with the midribs 

 to the petals crimson externally. — G. H. 



Cotyledon undulata. By W. B. Hemsley (Bot. Mag., tab. 7931).— 



Nat. ord. Crassulacece. Native of S. Africa. An erect shrub, 2-3 feet high, 

 mealy ; flowers in paniculate cymes, 6 inches diam., H inch long, 

 yellow and orange-red, pendulous. — G. H. 



Cereus peruvianus, Hardiness of (Rev. Hort. June 16, 1903, 

 p. 274). — A specimen at Narbonne is described which is growing in the 

 open, but in a sort of bay in the angle of two buildings, with southern 

 aspect. It is about 33 feet high, 18 years old, and generally in the winter 

 the temperature falls to 8° below zero (C.) = about 15° frost (F.), which 

 it has withstood without any protection whatever.— C. T. D. 



Crataegus sp. By C. S. Sargent (Bot Gaz. vol. xxxv. No. 6, 

 p. 877). — The author describes no less than twenty new species of this 

 genus in the neighbourhood of Chicago.— G. H. 



Crocus caspius. By E. A. Bowles (Gaul Chron. No. 887, p. 443, 

 fig. 17H ; Dec. 26, 1903).— This fine species was discovered in 1838 on the 

 western and southern shores of the Caspian Sea, but it was not then intro- 

 duced into Cultivation. Last autumn a collector was sent out to look for it ; 



