NOTES AND ABSTRACTS. 



357 



radical, oblong-lanceolate, 2 inches long; scape slender, with inflores- 

 cence I-I2 foot long; flowers white, violet-scented, with purple spots. 



G, H. 



Calceolaria Forgretii (Bot. Mag. t. 8436).— Peru. Family 

 Scrophulariaceae ; tribe Calceolarieae. Under-shrub, foot high. 



Leaves ovate, ^-2^ inches long; cymes lax, 6-8 inches long; corolla 

 4-5 lin. long, pale yellow, except for a large reddish-brown blotch 

 inside the lower lip. — G. H. 



Campanula arvatica {Bot. Mag. t. 8431).— Spain. Family- 

 Campanulaceae ; tribe Camyanuleae. Herb, perennial. Stems slender, 

 4-8 inches long ; leaves basal, cordate-rounded, J-inch long ; cauline ; 

 rhomboid, 3-4 lin. long; flowers solitary; corolla wide, 1-1^ inch 

 across, blue. — G. H. 



Campanula, New Hybrid. By F. Cayeux {he Jard. xxv. 591, 

 p. 300, Oct. 5, 1911; 1 fig.). — Campanula x pyraversi, a new hybrid 

 derived from G. versicolor x C. pyramidalis . Eecalls the character 

 of both parents, but presents a wider range of colour. — F. A. W. 



Canna, * Oiseau de Feu.' By F. Bloh {Rev. Hort. p. 108, 



March 1, 1912; coloured plate). — A splendid flower of brilliant cardinal 

 red throughout. Fine habits, and highly recommended. Eaised by 

 Vilmorin, Andrieux & Co.— C. T. D. 



Cauliflower, Spot Disease of. By Lucia McCulloch {U.S.A. Dep. 



Agr., Bur. PI. Ind., Bull. 225, 1911). — This disease is found to be due 

 to a rod- shaped motile bacterium, with rounded ends and one to five 

 polar flagella, named by the author Bacterium maculicolum. It stains 

 very readily with carbol fuchsin. It causes brownish to purplish grey 

 spots, one to three millimeters in diameter. All parts of the leaves 

 are affected. Where the midribs and veins are badly attacked the 

 tissues contract, giving a puckered appearance to the leaves. Success- 

 ful inoculation with pure cultures from poured plates were made, 

 infection showing in three days as water-soaked sunken spots on the 

 lower surface of the leaves. The leaves of attacked plants fall off. 



D. M. C. 



Ceanothus, A New {Bot. Gaz. p. 68, Jan. 1912).— Le Eoy Abrams 

 describes a new species from California. — G. F. S. E. 



Ceratozamia, Morpholog^y of. By Charles J. Chamberlain 

 {Bot. Gaz. Jan. 1912, pp. 1-19; 1 pi. and 7 figs.).— Southern Mexico is 

 the principal cycad region in the Western Hemisphere. Dioon and 

 (yeratozamia may be confined to Mexico. C. mexicana seldom reaches six 

 feet in height, is rather slender, has an armour of persistent leaf bases, 

 :nid is often curved or prostrate. A large plant will have about 

 20 leaves, four to six feet long, with 40 to 50 pairs of leaflets. Half of 

 (liese leaves will be dull green or even grey on account of the lichens 

 wliicli almost invariably incrust the older leaves. 



