Jamesia. SAXIFRAGACEiE. 593 



This g'^nus is allioil, not so niucli to Pliiladclphus as to Doutzii (wliicli Prof. 

 Zuccaririi lias rncenlly so ably illustrated in his and Siobold's Flora Japonica, and 

 which ho justly retains in Ilydranirca'), and especially to the intProHliiifr Scliizo. 

 phragnia of iho same author, (/'7. Japan. I. IJG.) whicli is very nearly allied to 

 Hydrangea itself, and yet does not dilfur essentially from iJecuniaria except in its 

 radiate sterile llowers, if they may so bo called, the rather smaller number of the 

 floral organs, and the erect seeds. — In examining the contents of the capsule, with 

 a good lens, we discovered an abundance of very minute acicular bodies, lying 

 loose among the seeds and the fibrous portions of the dissepiments, which liavo 

 entirely the appearance of acicular raphidos. Wo have only examined dried speci- 

 mens, and are unable to determine what is the organic situation of these bodies. 



D. burhara (Linn.! spec, appx.) — Willd.! spec. 2. p. 850; DC..' I. c. 

 D. barbara &c sarmenlosa, Bosc, act. soc. hist. nut. Par. I. p. 76. t. 13 ; 

 Pursh, ft.. \.p. 3-28; Ell.! sk. 1.^;. 533. D. radicans, Mrtnclt. meth. p. 17. 

 D. Forsythia, Mickr.! jl. I. p. 282. Fonsythia scandcii-s Walt.! Car. 

 p. 154. 



In shadv places along the maripn of swamps, North Carolina! to Florida! 

 and western Louisiana, Dr. Hale! May-.Iune. — Stem rliml)ing by rootlets, 

 often ascending trees to considfrable height. Leaves pi.-tiolfd, either broadly 

 or oblong-ovate, rather variable in form, either acute at each end, or often 

 rounded at the base, sometimes coarsely repand-toothed towards the apex. 

 Stamens as long as the petals. Capsule strongly ribbed ; the endocarp 

 with the dissepiments separating from the chartaceous exocarp, thin and 

 scarious, but rather firm, splitting when mature into innumerable band-like 

 fibres, as in Schizophragma, Zucc, exce])t that the fibres jiursue an obliciue- 

 ly descending course from the dorsal suture to the axis.* Placenta attenuate 

 below, dilated (and when dry liollow) towards the summit of the capsule. 

 Integument of the seed (arillus, DC.) aj)i)arently simple, and ccriauily the 

 testa, not an arillus. 



IG. JAMESIA. 



Flowers polygamous ? Calyx campanulate, deeply 5-cleft, coherent wth 

 the ovary at the base only ; the segments ovate-lanceolate, somewhat une- 

 qual, persistent. Petals 5, oblong, obtuse, narrowed at the base, concave, 

 minutely pubescent within ; the margins induplicate in aestivation. Stamens 

 as many or twice as many ? as the petals : filaments subulate, longer than 

 the petals. Ovary ovoid-conical, 3- (or sometimes 4-5- ) celled, at first in- 

 completely (the dilated placentas being scarcely coherent in the axis) : ovules 

 numerous, linear-oblong, ascending, imbricated : styles long, more or less 

 united at the base, much exserted : stigmas small, terminal, truncate. Fruit 

 unknown. — A shrubby plant, with opposite serrate pelioled leaves, and 

 small few-flowered axillary and terminal cymes ; the branchlets, as well 

 as the peduncles and calyx, clothed witli simple soft hairs ; the leaves can- 

 escent beneath. Flowers small. 



^4^ J. Americana. 



' Along the Platte or the Canadian River, near the Rocky Mountains ? Dr. 

 James .'—Shrub erect? with terete branches. Leaves, including the petioles. 



» Nearly the same structure is obsorvablo both in Hydrangea and in Philadel- 

 phus, but in these the fibres do not separate spontaneously. 



75 



