194 BORRAGINACE^E. Eritrichium. 



= = Lobes of fructiferous calyx very narrowly linear, twice or thrice the length of the nutlets, 

 armed with remarkably long and straight spreading bristles : appendages in throat of corolla evident. 



E. angustifolium, Torr. Hispid with spreading bristles, a span high, diffuse : leaves 

 narrowly linear : spikes often geminate, dense and slender : corolla barely a line long and 

 with a small limb: calyx-lobes almost filiform in age, seldom over a line long, beset with 

 divaricate bristles of the same length : nutlets half a line long, ovate-triangular, with mi- 

 nutely granulate surface, all four maturing, little longer than the conical-subulate gyno- 

 base, to which they are attached by a narrow grooved scar with somewhat broader base. 

 Pacif. II. Kep. v. 363, & Bot. Mex. Bound. 141. South-eastern California and Western 

 Arizona. (Lower Calif.) 



E. barbigerum. Hispid and hirsute, stouter, a span to a foot high, freely branching : 

 leaves broader : spikes solitary or paniculate, elongating ; the flowers at length rather 

 sparse and less secund : limb of the corolla sometimes 3 lines in diameter : catyx-lobes 

 linear-attenuate, in fruit 3 or 4 lines long, thickly beset with long shaggy bristles (of 1 to 

 2 lines length), which are sometimes accompanied with long white-villous hairs: nutlet 

 commonly by abortion solitary, and a line or more in length, surpassing the style, ovate- 

 trigonous and somewhat acuminate, muricate-papillose, attached by the lower half and 

 more to the subulate-columnar gynobase, the scar dilated at base (infertile ovary-lobes 

 remaining on the gynobase, attached for almost their whole length). S. California, from 

 Santa Barbara Co. to S. Utah and Arizona, Parry, Palmer, Smart, Rothrock, &c. Has been 

 confounded in imperfect specimens with the preceding and some of the following. 



= = = Lobes of the fructiferous calyx less attenuated, and the bristles less elongated: appen- 

 dages of the throat of the corolla conspicuous: all four nutlets usually maturing. 



E. leiocarpum, "Watson. Roughish-hirsute or hispid, with mostly ascending hairs, a 

 span to a foot high, usually branching freely: spikes when elongated becoming rather 

 loosely-flowered: limb of corolla 2 lines or less in diameter: fructiferous calyx-lobes sel- 

 dom over 2 lines long, from narrowly lanceolate to narrow-linear : nutlets ovate and oblong- 

 ovate, very smooth and shining, a line or less long, somewhat surpassing the persistent 

 style, attached from the middle downward to the subulate gynobase by a very slender scar 

 which is divergently bifurcate at the very base. Bot. King, 244; Gray, I.e. Echino- 

 spermum leioctirjjuni, Fisch. & Meyer, Ind. Sem. Petrop. 1835, 36. Knjiut~kia leiocarpa, 

 Fisch. & Meyer, Ind. Sem. Petrop. 1841, 52 ; A.DC. 1. c. Mi/osotisJJaccida, Dougl. in Hook. 

 Fl. ii. 82. California to borders of British Columbia, and east to New Mexico and 

 Saskatchewan. A wide-spread and also variable species. 



E. muriculatum, A.DC. Stouter, leafy, more hirsute-hispid with spreading hairs, a 

 foot or two high : spikes often geminate or collected in a 3-5-radiate pedunculate cyme : 

 limb of corolla 2 or 3 lines in diameter : calyx-lobes lanceolate, in fruit only 1 to 2 lines 

 long and seldom twice the length of the nutlets : these ovate-triangular, obtuse, a line 

 long, not equalling the style, dull or nearly so, muricate-papillose on the back and some- 

 times on the inner faces also, attached to the subulate gynobase for two-thirds of their 

 length by a grooved scar which widens downward and is transversely dilated at base. 

 Prodr. ix. 132. Myosotis muricata, Hook. & Arn. Bot. Beech. 369. California, Dong/as 

 (specimen, in flower only, wrongly referred, in Proc. Am. Acad. x. 59, to E. cancscens), Brewer, 

 Palmer (in fruit, San Buenaventura and back of San Simeon Bay), Coulter, Xantus, &c. 



Var. ambiguum. Fruit of E. muriculatum, or usually sparsely and more minutely 

 muriculate, equally dull, equalling and usually somewhat surpassing the persistent style, 

 yet occasionally shorter: in whole habit, sparse spikes, and generally the longer and nar- 

 rower calyx-lobes agreeing with E. leiocarpum, of which there is also a form with lanceolate 

 and shorter calyx-lobes. E. muriculatum, Torr. Bot. Wilkes Exp. xvii. 416, t. 13; Gray, 

 1. c., mainly. E. angnstifolium, Watson, Bot. King, 241, not Torr., at least not the original 

 plant. California and Nevada to Washington Terr. 



H- -H- Gynobase broader, pyramidal or conical: nutlets with a correspondingly broader scar 

 (E. Texanum excepted): corolla small or minute (the limb only a line or two in diameter): 

 calyx very hispid with yellowish or fulvous bristles: rough-hispid annuals, with spikes loose in 

 fruit, and mostly leafy-firacteate at base. 



= Nutlets all fertile and alike, small: midrib of calyx-lobes not thickened. 



E. pusillum, Torr. & Gray. Low (2 or 3 inches high) and slender: linear leaves 

 mainly clustered at the root : flowers rather crowded in small spikes : calyx-lobes ovate- 



