OF ARTS AND SCIENCES. 159 



prominent erect appendages at the throat : lobes of the ovary nearly 

 horizontal upon the broad flattish gyuobase ; only 1 or 2 nutlets usu- 

 ally maturing, attached by a broad ovate scar from above the base 

 to near the apex, round-ovate, 1^ lines long, the marginal wing 

 strongly involute, denticulate. — In fissures of dry limestone rocks in 

 the Sierra ^ladre near Monterey; June, 1888 (n. 1878). Evidently 

 a congener of the plants collected by Dr. Palmer in the same region 

 and referred to this genus by Dr. Gray {0. aliena and cardiophylla). 



Brachistus Pkinglei. Shrubby (?) with herbaceous virgate 

 branches, finely pubescent throughout : leaves mostly geminate, ovate 

 to lanceolate, acute or short-acuminate, rounded at base on a short 

 margined petiole, 1 to 2i inches long, one of the pair much smaller: 

 pedicels solitary or in pairs in the axils, about 6 lines long : calyx 

 small, truncate, with a linear tooth at each angle as long as the tube ; 

 corolla campanulate, plicate-angled, 3 lines long: fruit depressed- 

 globose, 2 or 3 lines broad. — In the Sierra de la Silla near Mon- 

 terey ; May, 1889 (n. 2544). 



Berendtia spinulosa. Shrubby, with rigid branches, the upper 

 branchlets developing into short spines, leafy, finely glandular-hispid 

 throughout : leaves oblanceolate or obloug-oblanceolate, acute or 

 acutish, cuneate at base and sessile or nearly so, entire or sparingly 

 toothed, 9 lines long or less : pedicels mostly solitary in the upper 

 axils, about equalling the leaves ; calyx 3 lines long, with short acute 

 teeth ; corolla yellow, \ inch long, with ample limb : anthers very 

 small : capsule lanceolate, 2 lines long — On dry limestone cliffs of 

 the Sierra Madre near Monterey ; June, 1888 (n. 1952). Near 

 B. Couheri. 



Gratiola (vSophronanthe) Mexicana. Annual, slender, loosely 

 branching, 3 or 4 inches high, glabrous or nearly so : leaves oblong- 

 ovate, acute, spreading, 2 lines long or less : pedicels naked, 1|- to 3 

 lines long : calyx-segments nearly equal, narrowly lanceolate, about 

 equalling the oblong capsule (a line long) ; corolla purple, 2 or 3 

 lines long : anther-cells contiguous but transverse ; sterile filaments 

 papillose-pubescent: seeds very minute. — In shallow water on the 

 plains of Guadalajara; October, 1889 (n. 2468). This species has 

 the contiguous anther-cells of the section, but varies from it in their 

 transverse position and in the longer ebracteolate pedicels. 



Isoloma Jaliscanum. Stems herbaceous or somewhat woody at 

 base, decumbent, about a foot high, pubescent throughout : leaves 

 opposite, oblong-lanceolate, short-acuminate, rounded or acutish at 

 base, serrate, 1 to 3 inches long, shortly petiolate : peduncles axillary, 



