I. PLANT/E IREMONTIANiE. 11 



in the even calyx without glands* in the throat ; in being ahnost destitute of a 

 style, as well as in the mode of inflorescence, the form of the ovary, &c. There 

 may also be considerable difference in the fruit, as the appearance of the ovary 

 seems to indicate. The generic name is derived from 'Efi7i/ie;icTro5, entangled, and 

 ;c/Ld&5, a branch. 



CHAM^BATIA, Benth. Plant. Hartw. p. SOS.f 



Calycis tubus turbinato-campanulatus ; limbus persistens, laciniis 5 sestiva- 

 tione valvatis. Petala 5. Stamina numerosa, pluriseriata, ad faucem calycis 

 inserta. Ovarium in fundo calycis unicum, erectum, liberum : stylus ex apice ovarii 

 erectus, latere interiore fere ad medium fissus et stigmatifer. Ovula 2, erecta, 

 anatropa. Achenium siccum, calyce subinclusum. Semen unicum erectum. — 

 Frutex Californicus, ramosissimus ; foliis tripinnatisectis, segmentis ultimis con- 

 fertis numerosissimis ; stipulis hneari-lanceolatis ; floribus cymosis albis. 



CHAM^BATIA FOLIOLOSA, Benth. 1. c. Tab. VI. 



Hab. — Higher parts of the Sierra Nevada, as well .as on the sides of the foot- 

 hills ; in great abundance : Colonel Fremont. Mountains of the Sacramento : 

 Mr. Hartweg and Mr. Shelton. 



A shrub, growing from two to three feet high, of agreeable balsamic odor, with 

 very smooth bark, and numerous upright branches ; the young twigs clothed with 

 a glandularly pubescent epidermis, which easily separates. The leaves. are broadly 

 ovate in outHnc, about two inches long, tripinnately dissected ; the ultimate seg- 

 ments oval and obtuse, scarcely half a line long, hispidulous-pubescent, each tipped 

 with a minute gland. Stipules minute, adnate to the petiole. The cymes 

 are four-five-flowered, and terminate the young shoots : each pedicel is sub- 

 tended by a foHaceous bract, which is toothed or pinnatifid.^ The flowers are 

 about three fourths of an inch in diameter. Externally the calyx is glandularly 

 pubescent, and the inside of the tvibe is densely woolly. The petals are white, 

 obovate, emarginate, with a very short claw. There are fifty or more stamens, 

 the filaments of which are inserted in several series in the throat of the calyx. 

 The pollen is obtusely triangular. The ovary is ovoid ; one-celled, with two 



* The so-calkd glands in the throat of Adenostoma are only lobes of the free margin of the disk. 



f The plant on which this genus flas founded was first discovered by Colonel Fremont, in his second 

 expedition, while traversing the Sierra Nevada and other parts of California, early in the year 1844, as 

 well as in his third expedition. His specimens were too imperfect for description. It was afterwards found 

 in good condition, but without mature fruit, by the well known and zealous botanical collector, Mr. Hart- 

 weg. Mr. Bentham kindly offered me the privilege of describing this fine new genus, but I thought the 

 right fairly belonged to him, as he first determined its character and affinities. I have but little to add to 

 the accurate description which he has given of it in his Plantse Hartwegianae. 



