428 SUPPLEMENT. 



++ Nutlets short, broadly trigonous, attached at the lower half by a triangular impressed areola 

 or scar to the acute-pyramidal gynobase, the groove above obscure and free, the convex back 

 coarsely papillose: calyx of lanceolate sepals, hirsute or hispid with short but not pungent bris- 

 tles : Texano-Mexican species, with partly bracted spikes. 



K. pusilla, Gray, Proc. Am. Acad. xx. 274, is Eritrichium pusillum, Torr. ■& Gray, p. 194. 



Small : nutlets not half a line long, lucidulous, the lateral angles acute and the ventral 



faces concave, and the angle carinate-acute down to the deltoid hardly excavated areola of 



insertion. 

 K. ramosa, Gray, 1. c. Larger and stouter, less than a foot high, much branched, roughish- 



hispid : nutlets dull, with rounded sides, no angles, and a large and deep areola or scar. — 



Lithospermum ramosum, Lehm. Asperif. 328. Myosotis albida, HBK. Nov. Gen. & Spec. iii. 



91. Eritrichium ramosum, A. DC.-Prodr. x. 132. E. hispidum, Buckley, & p. 195. — Texas 



and New Mexico to Arizona. (Mex.) 



++ ++ Nutlets ovate-lanceolate and more or less obcompressed, the ventral face traversed its 

 whole length by a narrow, groove (which is hardly at all forked and little areolate-dilated at 

 base) to the nearly filiform gynobase: inflorescence tardily and incompletely evolute into secund 

 spikes. 



= Rough-hispid with rigid and mostly pungent bristles, low and coarse, with much branched 

 rigid stems : fructiferous calyx or its very short pedicel readily disarticulating from its insertion 

 at maturity, as in most pVeceding species : nutlets wholly smooth and lucid, only one or two 

 maturing. 



K. ramosissima, Greene. Hispid with rather long whitish bristles : leaves thickish, 

 linear or lanceolate, half-inch or less long : mature nutlets with roundish or at least not 

 acute margins. — Bull. Calif. Acad. i. 203, not of Gray, which was essentially founded on 

 the perennial and roughish-fruited species. — S. California ; on Santa Catalina Island, Lyon, 

 Mohave Desert, Mrs. Layne- Curran, and The Needles on the Colorado, Jones. 

 K. maritima, Greene. Hispid with more rigid and usually shorter bristles : leaves lin- 

 ear, not broader at base, the longer an inch long : nutlets with acute margins. — K. maritima 

 & K. Cedrosensis, Greene, Bull. Calif. Acad. i. 204. Eritrichium angustifolium, Watson, 

 Proc. Am. Acad. xi. 118, not Torr. — S. California on Point Loma, San Diego, Orcutt, 

 probably of this species, but no mature fruit seen. (Lower California at Cedros and Gua- 

 dalupe Islands.) 



= = Canescently strigulose-pubesceut on the slender and diffuse low stems and branches, and 

 the small leaves and copious bracts more or less hirsute or hispid, also hispid-ciliate: fructiferous 

 calyxes tardily disarticulating: style in age commonly thicker than the gynobase: nutlets with 

 roundish margins, sometimes smooth and lucid, sometimes minutely papillose-scabrous and 

 grayish. 

 K. micrantha, Gray, Proc. Am. Acad. xx. 275, & var. lepida, is Eritrichium micranthum, 

 Torr. & var., p. 275. — Western border of Texas to S. W. California. Boots red and giv- 

 ing a red stain. 



* * Piptocalyx. Fructiferous calyx (5-cleft and villous-hispid) circumscissile above the base, 

 which persists around the nutlets: these ovate-deltoid and trigonous and somewhat acuminate, 

 very smooth, or in some specimens puncticulate with minute projecting points, acutish at the 

 lateral angles, the ventral angle traversed by the narrow groove of attachment, this forked at 

 base and closed: anthers mucronulate: depressed much branched annuals, with crowded leafy 

 inflorescence, floriferous almost from base, hirsute-hispid. — Gray, Proc. Am. Acad. xx. 275. 

 Piptocalyx, Torr. 

 K. Ciroumscissa, Gray, I.e., is Eritrichium circumscissum, Gray, p. 193, with syn. — 



Extends from Dower California and Arizona through the dry region to borders of Brit. 



Columbia. Nutlets half to two thirds of a line long. 

 K. diohotoma, Greene. Larger, coarser, more open in inflorescence, very hirsute-hispid 



with widely spreading hairs : lower leaves opposite : calyx at length 2 lines long : nutlets 



from three fourths to fully a line long, smooth and somewhat lucid. — Bull. Calif. Acad. i. 



206. — W. border of Nevada, between Boca and Verdi, Mrs. Layne-Curran. 



§ 4. Pterygium. Nutlets all four or all but one scarious-winged at the 

 margins, attached by the whole length of the ventral groove : spikes bractless. — 



