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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



He finds, in accordance with Yelenovsky, that the lateral four-gland 

 nectary or Alyssum type represents the ground type of the cruciferous 

 nectary from which all other forms can be obtained by simple modi- 

 fications, such as enlargement or expansion on the torus, and union of 

 originally separate gland primordials. 



The same type of nectary may occur in genera which are not closely 

 allied, and genera which are nearly related systematically may have 

 very different nectaries, so that great caution is necessary in using 

 characters of the nectary in classification. — G. F. S. E. 



Cucumber Beetles, Notes on the. By F. H. Chittenden, Sc.D. 

 Biolog-ical Notes on Species of Diabrotica in Southern Texas. 



By H. 0. Marsh {U.S.A. Dep. Agr., Bur. Entom., Bull. 82; pt. vi. 

 Dec. 1910; 5 figs.). — The commonest and best known are the striped 

 cucumber beetle {Diabrotica vittata Fab.), the twelve-spotted cucumber 

 beetle {D. duodecim-punctata Oliv.), and a Western species related to 

 the last, known as D. Soror Lec. 



All these are of the highest economic importance. In addition, 

 there are several other species which habitually or occasionally affect 

 truck crops, and it is with these that the authors deal. — V. G. J. 



Cucumis metuliferus {Bot. Mag. t. 8358). — Tropical and South- 

 East Africa. Family, Cucurbitaceae ; tribe, Oucumerineae. The 

 " Horned " cucumber is a climbing herb. Leaves, 1-4 inches long, 

 cusped ; blade 3-5 lobed. Flowers, males in clusters ; females, 

 single, corolla 1^ inches wide, yellow. Fruit 2^-5 inches long, 2^ 

 inches thick, oblong, with many thick conical spines, rich scarlet when 

 ripe.— G. H. 



Cucurbit, A tuberous (Cucurbita perennis). By Ch. Grosde- 

 mange {Rev. Hort. pp. 455-6; Oct. 1, 1911; 1 fig.).— This plant, 

 a native of Texas, presents many generic anomahes and has been 

 described by Naudin as an apparent mixture of four very different 

 species, of which it presents close resemblances in the roots system, 

 flowers, leaves, and fruit. As young plants appear in the vicinity of 

 the parent, it had been assumed that these originated from an under- 

 ground rhizome, but as these never appeared when the plants were 

 trained perpendicularly, but only when the branches traversed the soil, 

 an investigation has shown that these branches rooted at the axils 

 where they touched the ground, and that these roots became long 

 tubers provided with several apical eyes whence new plants sprang the 

 following season. The fruits are round and of the size of small 

 apples, dark-green with lighter stripes, and owing to the dry, sunny 

 season of 1911 have been very plentiful. Eecommended as a generic 

 curiosity. — C. T. D. 



Cucurbitaceae, Peg- of the. By Crocker, Knight, and Eoberts 

 {Bot. Gaz. pp. 321-39, Nov. 1910; 6 figs.).— A series of experiments 

 are described from which the authors conclude that " there is no 



