194 BORRAGINACE^. EritricUum. 



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

 armed with remarkably long an'd straight spreading bristles ; appendages in throat of corolla evident. 



B. 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 ha:lf 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. R. Rep. v. 363, & Bot. Mex. Bound. 141. — South-eastern California and Western 

 Arizona. (Lower Calif.) 

 ■ B. 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 : calyx-lobes 

 linear-attenuate, in fruit 3 or 4 lines long, thickly beset with long shaggy bristles (of 1-J- 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, Eothrock, &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. 



. B. 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, 1. c. — Echiiio- 

 spermum leiocarpum, Fisch. & Meyer, Ind. Sem. Petrop. 1835, 36. Krynitzkia leiocarpa, 

 Fisch. & Meyer, Ind. Sem. Petrop. 1841, 52 ; A.BC. 1. c. Myosotis flaccida, Dougl. in Hook, 

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

 Saskatchewan. A wide-spread and also variable species. 



' B. rauriculatum, 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 l-J 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. j\fyosotis miiricata, Hook. & Arn. Bot. Beech. 309. — California, Dourilas 

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

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



"~" Var. ambiguum. Fruit of E. murienlatiim, or usually sparsely and more minutely 

 muriculatc, 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. 41G, t. 13; Gray, 

 1. c, mainly. E. angustifolium, Watson, 15ot. King, 241, not Torr., at least not the original 

 plant. — California and Nevada to Washington Terr. 



■H- ++ Gynobase broader, pyramidal or conical: nutlets with a corresponding! v broader scar 

 (£. Texanum excepted): lomlla small or minute (die limb only a line or two in diameter): 

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

 fruit, and mostly leaty-bratteate at base. 



= Nutlets ;dl 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- 



