C 149 ] 



Art. XIII. — Descriptions of Plants collected by William Gambel, M. D., in the Rochj 

 Mountains and Upper California. By Thomas Nuttall. 



*GAMBELIA.t 



Natural order, Scrophularin^. Tribe ANTiRRHiNEiE. 



Calyx 5-parted, nearly equal. Corolla hypogynous, the tube cylindrical, saccate at the base, orifice 

 narrowly pervious, the border bilabiate, the palate rather prominent, smooth ; upper lip erect, the 

 lower spreading, all the segments nearly equal and oblong. Stamina four, arising from the base of the 

 corolla tube, included, didynamous : no sterile filament : anthers bilocular, oblong. Ovarium bilocular, 

 with many ovules, seated upon a glandular torus. Style simple, clavate, entire. Capsule subglobose, 

 2-celled, opening below the summit by two or three irregular apertures. Seed, [not seen.] — A 

 spreading bush, with verticillate, entire, coriaceous leaves, and axillary and terminal conspicuous 

 scarlet flowers. Allied to Galvezia, but with a prominent palate and a saccate spur at the base of the 

 corolla. 



G. SPECIOSA. 



A bush about three to four feet in height, full of bright scarlet flowers. The older 

 branches covered with a smooth grey bark, all of them cylindric. The younger 

 branches leaves and flowers more or less hairy, with a soft pubescence. Leaves 

 rather small, coriaceous, ternate, verticillate, and apparently evergreen, with a few 

 obscure reticulated vessels, running over the under surface ; their form oblong, rather 

 obtuse, entire and attenuated at the base into a short peduncle : there are no stipules 

 or bractes, though the leaves diminish to a very small size as the terminal 

 inflorescence advances. Length of the leaves about one and a half inches, the 

 breadth about half an inch. Peduncles axillary by threes shorter than the lower 

 leaves. Calyx unequal, 5-parted, the segments linear-lanceolate. Corolla about an 

 inch in length and tubular, with a conspicuous saccate spur at the base ; the border, 

 personate, the lower 3-lobed, lip with a somewhat prominent smooth palate ; upper 

 lip 2-lobed, somewhat erect, and deflected at the sides. Stamens didynamous, arising 

 from the base of the tube, the pairs a little unequal, the filaments with a chaffy down 

 at the base. Style a good way shorter than the corolla, gradually clavate above and 

 perfectly entire, and a little curved at the summit : a glandular torus round the base 

 of the germ. Capsule subglobose, hirsute, two-celled, opening below the summit by 

 two or three irregular roundish foramina ; the placenta attached chiefly to the centre 

 of the dissepiment. The imperfect seeds appear to be narrow and angular, but the 

 perfect seed I have not seen. 



tin honor of Dr. William Gambel, a naturalist, who has explored Upper California, and particularly elucidated 

 the ornithology of that country. 



