Ex. Doc. No. 41. 147 



HYDROLEACE^. 



i!*' Eriodictyon, Benfh. in hot Sulph.^ />. 35. Chois in DC^ prod. 

 lOj p, 183- A well characterized Californian genus, containing 

 three described species, one of which is the Wigandia Californicay 

 Hook and Arn^ which was found in rocky places near the mouth of 

 San CarloSj on the Gila, and on the Cordilleras of California. The' 

 leaves are coriaceous, varying in form from narrowly linear to lan- 

 ceolate, and from being perfectly entire to strongly dentate. The 

 upper surface '(as well as the branches,) is covered with a copious 

 adhesive varnish, while the under-side is whitish tomentose, with 

 strongly marked reticulated veins. 



POLEMONIACE^. 



Phlox, n. sp. This likewise occurs in Texas, and will be de- 

 scribed by Dr. Gray. It was found in various places on the tribu- 

 taries of the Canadian. 



Gilia pulchellaj Dougl. Ocate creelc, and other tributaries of the 



Canadian, ^ . ' 



G. longifolia, Benth. Ipomcea longifoliaj Torr. In Long's Roclcy 

 mountain plants. Valley of the Del Norte, 



• Fouquieria spinosa. {Bronnia spinosa, Kunth. nov. gen. 6, p. 

 84, ;. 528.) Benth. in hot. Sufph. p. 16. Ascending the Cordilleras 

 of California. A highly ornamental shrub, shooting up long 

 smooth simple stems, to the height of from 12 to 25 feet^. with a 

 panicle of scarlet flowers at the summit. It differs slightly from 

 the figure and description of Kunth, but seems to be the same'pl^t.^ 

 The leaves are obovate-oblong, glabrous and raembranaceoas, grbw-*^ 

 in fascicles in the axils of the spines. The spines are !"rom a "half 

 an inch to near an inch in length, slender, more or less spreaditigj 

 or even Somewhat recurved. At the base of each is a longitudinal 

 protuberance which extends along the stem until it reaches the spine, 

 'which is on a line with it below. The panicle is usually contracted 

 and elongated, but sometimes short, and almost corymbose. The 

 flowers are on short pedicels which are furnished with deciduous 

 'bracts. Sepals 5, nearly orbicular, concave, strongly imbj-icated, 

 persistent, about one fourth the length of the corolla. Corolla 

 about three-fourths of an inch long; the tube cylindrical, and often 

 curved; limb 5-cleft, with ovate rather acute segments. Stamens 

 13 to 16 exserted, hypogynous; the filaments thickened and sorae- 

 'W'hat cohereat at the base; anthers linear oblong, raucronate.. 

 Ovary 3-celled, with about 6 ascending anatropous ovules in each 

 cell, style 3, parted below the middle. Capsule oblong, acute, 

 ootuse, triangular, coriaceous and glabrous, 3-valved, loculicidal, 

 straight, or little curved, one-celled by the separation of the valves 

 "om the triangular axis. Seeds 3 to 6, white, ovate, pellate, much 



CO 



ft 



' testa, and which finally is resolved into numerous fine Lairs. 

 These are beautiful objects under the microscore. They are spiral 

 Vessels consisting of an extremely delicate sheath, containing the 



