62 PROCEEDINGS OP THE AMERICAN ACADEMY 



numerous serratures : corolla more broadly funnel-form, the limb 12 to 

 15 lines broad; calyx-teeth slender, nearly equalling the tube. — A 

 shrub, 5 to 8 feet high, in gravelly ravines about Guaymas. (112.") 



CoRDiA (Myxa § Spiciformes) Palmeri. a shrub, 4 or 5 feet 

 high, the young branches aud lower side of the leaves finely pubescent : 

 leaves oblong-lanceolate, attenuate at base, very shortly petiolate, acut- 

 ish, rather coarsely toothed, scabrous above, 1 to 2^ inches long by 3 

 to 6 lines broad: spikes pedunculate, loose, tomentulose, 1 to 1| inches 

 long: corolla 3 lines long, twice longer than the calyx: fruit red, ex- 

 serted, nearly 3 lines long. — '' Yerba del pasmo." In ravines in the 

 high mountains above Guaymas. (281.) 



BouRRERiA SoNOR.^.. A shrub, about 10 feet high, with stout 

 very leafy branches : leaves very roughly papillose-scabrous above, 

 soft-pubescent beneath, obovate to oblong-spatulate, obtuse or retuse, 

 attenuate to a very short petiole, entire, 1^ inches long or less : flow- 

 ers few on slender pubescent pedicels 2 to 5 lines long : calyx cleft 

 to the middle, the deltoid lobes acute, half the length of the corolla- 

 tube ; corolla greenish yellow, puberulent, 5 lines long, the lobes 

 oblong, acute ; filaments glabrous, exserted : fruit black, depressed- 

 globose, 2 J- lines broad. — Near a waterfall in the mountains above 

 Guaymas. (^289.) 



CoLDENiA* ANGELICA. Annual, prostrate, wide-spreading, some- 

 wliat hispid : leaves ovate to rhombic, acute, strigose-hispid on the 

 margin and finely appressed-pubescent, entire or the margin sinuate, 

 irregularly 2-3-nerved each side of the midvein : calyx nearly 2 lines 

 long, the narrowly acuminate hispid lobes nearly twice longer than 

 the tube; corolla "mauve," 3 lines long; filaments slender, adnate 

 nearly to the middle, with a short obtuse prominent appendage at 



* Two otlier species of tliis genus may be defined as follows : — 

 C. BREvi CALYX. Wliite witli a close fine pubescence and scarcely at all 

 hispid: leaves very like those of C. anqelicn in form and veining : calyx very 

 sliort (1 line), the broadish acute lobes shorter than the tul)e ; corolla 2 Ihies 

 long; filaments slender, slightly dilated below the insertion: nutlet subglo- 

 bose, much smaller; embryo similar. — Confused with the true C. Palmeri 

 as to characters of flower and fruit. On the lower Colorado (Palmer, 1869; 

 C. Palmeri, Gray, Proc. Am. Acad. 7. 292, and Syn. Fl., in part) ; San Ber- 

 nardino (147 \V. G. Wright, 1880). 



C. Palmeri, Gray. Limiting the species to the one of Palmer's original 

 specimens which has tlie leaves " plicate-lineate by about 6 pairs of straight 

 and strong veins," it may be otherwise distinguished by the 5-parted calyx (1| 

 lines long), the lobes linear and acute. The corolla is 2.^ lines long, with the 

 rather stout filaments somewhat dilated below the insertion. The fruit is 

 unknown. 



