Eritrichiwm. BORRAGINACE.E. 193 



vada and California ; Truckee Pass, Watson, a larger-flowered form. Sierra Valley, Lemmon, 

 a smaller-flowered form and with some fruit. Connects Plagiobothrys with the following 

 section. 



3. KRYNITZKIA, Gray. Nutlets ventrally attached from next the base to 

 the middle or to the apex to the pyramidal or columnar or subulate gynobase ; 

 the scar mostly sulcate or slightly excavated: seed from amphitropous to nearly 

 anatropous, commonly pendulous : corolla (except in the last species) white : 

 calyx 5-parted, closed in fruit. Krynitzkia, Fisch. & Meyer, Ind. Sem. Petrop. 

 1841, 52. Krynitzkia & Piptocalyx, Gray, 1. c. 



* (EuKRYNiTZKiA.) Nutlets without acute lateral angles or margins, the sides more commonly 

 rounded: corolla mostly small; the tube not surpassing the mostly setose-hispid calyx: anthers 

 oval: root annual. 



H Calyx early circumscissile ; the 5-cleft upper portion falling away, leaving a membranaceous 

 somewhat crenate-margined base persistent around the fruit : corolla with naked and open throat : 

 anthers mucronatc: flowers all leafy-bracteate and sessile. Piptocalyx, Torr. 



E. circuinscissum, Gray. Depressed-spreading, very much branched from the annual 

 root, an inch to a span high, whitish-hispid throughout: narrow linear leaves (a quarter to 

 half inch long) and very small flowers crowded, especially on the upper part of the 

 branches: nutlets oblong-ovate, smooth or minutely puncticulate-scabrous, attached by a 

 narrow groove (with transverse basal bifurcation) for nearly the whole length to the pyra- 

 midal-subulate gynobase. Proc. Am. Acacl. x. 58, & Bot. Calif, i. 527. Lit/iospermum cir- 

 cuinscissum, Hook. & Arn. Bot. Beech. 370. Piptocalyx circumscissus, Torr. in Wilkes Exp. 

 xvii. 414, 1. 12. Desert plains, E. California to Utah, Wyoming, and Washington Terr. 



H 4 Calyx neither circumscissile nor disarticulating from the axis in age; the lobes linear- 

 oblong, obtuse, nearly nerveless: the bristles short and even, not setose or pungent: corolla with 

 minute if any appendages at the throat: nutlets attached for the whole length to a slender 

 columnar gynobase by a groove which does not bifurcate nor sensibly enlarge at base: flowers all 

 leafy-bracteate, short-pedicelled : style at length thickened! 



E. micranthum, Torr. Hirsute-canescent, slender, 2 to 5 inches high, at length dif- 

 fusely much branched : leaves linear, only 2 to 4 lines long : flowers in the forks, and much 

 crowded in short leafy spikes, about equalling the upper bracts : corolla barely a line high, 

 and its lobes one to two-thirds of a line long, obscurely appendaged at the throat : nutlets 

 oblong-ovate, acute or acuminate, smooth and shining or dull and puncticulate-scabrous (half 

 to two-thirds of a line long) : style becoming thicker than the gynobase, or even pyramidal. 

 Bot. Mex. Bound. 141; Watson, Bot. King, 244. Dry plains, western border of Texas 

 through Utah and Arizona to E. California, where larger flowered specimens connect with 



Var. lepidum. Less slender and more hirsute : corolla larger, its expanded limb 2 or 3 

 lines in diameter; the appendages or folds in the throat very manifest: nutlets nearly a 

 line long, puncticulate-scabrous. California, in San Diego Co., D. Cleveland. 



) 4 4 Calyx not circumsdssile, 5-parted, conspicuously and often pungently hispid with lnrge 

 stiff bristles, and the lobes usually with a stout midnerve; the whole calyx (or short pedicel) in 

 several species inclined to disarticulate at maturity and to form a sort of bur, loosely enclosing 

 the nutlets: inflorescence scorpioid-spicate, without or partly with bracts. 



H- Gynobase slender and narrow : nutlets with narrow grooved scar, or continued into a groove 

 above the attachment and so running the whole length of the ventral face : spikes when developed 

 mainlv bractless : leaves in all linear. 



= Lobes of the fructiferous calyx very narrow; the strong bristles below reflexed and partly unci- 

 nate: appendages in the throat of the small corolla obsolete or wanting: only one nutlet 

 usually maturing. 



E. oxycaryum, Gray. Somewhat canescently strigulose-pubescent or above hirsute, 

 slender, 6 to 20 inches high : leaves narrow : spikes dense in age, but slender, becoming 

 strict, and with the sessile fruiting calyx appressed : this at most 2 lines long, thickly beset 

 toward the base with stout reflexed bristles (of a line or less in length), the tips of some 

 of them curving : nutlet ovate-acuminate or ovate-lanceolate, very smooth and shining, 

 fully a line long, much surpassing the subulate gynobase and style, affixed to the latter 

 only by the lower half or third of the narrow ventral groove. Proc. Am. Acad. x. 58, & 

 Bot. Calif, i. 526. M yosotis flaccida, Hook. & Arn. Bot. Beech. 3G9, ex Benth., not Dougl. 

 Krynitzkia leiocarpa, Benth. PI. Hartw. (no. 1872), 326, not Fisch. & Meyer. Common in 

 W. California. (Not seen from Oregon.) 



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