V-' 



X 



|r J 





217 



second an enumeration of Mr. G. C. Nealley's collections during 

 the past three years in southwestern Texas by Dr. Coulter. 



' r 



Reviews of Foreign Literature, 



Delia prcscnza di Stipole nclla Loniccra cocnilca. Nota di S. Som- 



mier, (Nuovo Gior. Bot. Italiano, April, '90). 



In this article the author describes a form of Loniccra, called 

 by' him L. cccrulca, L. forma stipiiligera which he collected in 

 Western Siberia, and which in his specimens unite the forms of 

 the species heretofore known as a glahrcscens, Rupr., ft villosa, 

 Torrey and Gray, and y cdnlis, Tiircz., with elliptical, ovate or 

 obovate leaves varying as to size, and both villous or glabrous, 

 most of the specimens having well developed interpctiolar stipules. 

 When young they are merely foliaccous expansions that unite 

 the two opposing petioles, making a more or less circular disk. 

 This disk, called by Sig. Sommier " stipular disk" was in some 

 plants slightly developed, in others attaining nearly ii mm., and 

 when voune is of the same color, consistency, etc., as the leaves ; 

 later they turn the color of the woody stem, and are persistent 



after the fall of the leaves. 



These stipules bear a strong resemblance to those of Penta- 

 pyxis stipiilata and Lyccstcria glaucophylla, especially to those 

 of the latter plant, which is described in the Flora of British In- 

 dia as having stipules " entirely absent or more or less developed 

 into a small semi-circular coriaceous lamina." In Loniccra Cali- 

 fornica, Torr. and Gray, the superior leaves are connate like 

 those of Loniccra Caprifolinin, the lower ones having detached 

 appendages (called stipuliform appendages in the Flora of North 

 America) that correspond as perfectly to the disk of Z. cojrulca 

 as to the appendages«called stipules by Hooker and Thomson in 

 I^ntapyxis. In I^. Californica it is hard to say whether the stip- 

 uliform appendages attaching themselves to the bases of the up- 

 per leaves, form the perfoliate disk or whether the connate leaves 



b 



Si^^. Sommier suggests that, as there is an ever increasing 



i^. ^Wllllliiv.. -^"tjt. 



;> \ 



number of species, genera and orders, formerly thought exstipu- 

 late, in which stipules, either rudimentary or in a single stage of 

 the development of the plant, are being found, this might be an 



