I 



Eritrichium. BORRAGrlNACEJE. 527 



7. E. Torreyi, Gray, 1. c. Diffuse or decumbent, rough-hirsute or even hispid, 

 the hairs even of the calyx not yellowish : stems branching and uniformly leafy : 

 leaves oblong (half an inch or less in length) ; the uppermost forming similar 

 bracts to the lax leafy and interrupted spikes : corolla apparently as in the preced- 

 ing species : nutlets broadly ovate and only the apex contracted, the broad trans- 

 verse ridges separated by narrow sunken lines, very smooth, or obscurely tuberculate 

 along the sides. 



Sierra Nevada : Yosemite Valley and Mountains, Torrey (a rather slender and upright form, 

 with bracts hardly surpassing the flowers). Sierra Valley, Lemmon : a diffusely spreading form, 

 with copious bracteal leaves, like those below, accompanying and much exceeding the flowers. 



3. Calyx only 5-cleft, at maturity separating about the middle of the short tube by 

 a transvei'se division, the membranaceous base persisting under the fruit, 

 ivhile the rest falls away : otherwise as in the next section. PIPTOCALYX, 

 Gray, 1. c. (Piptocalyx, Torr.) 



8. E. circumscissum, Gray, 1. c. Very low and diffusely much-branched 

 annual, an inch to a span high, whitish-hispid throughout : narrow linear leaves 

 (half an inch or less long) and minute flowers crowded on the branches, forming 

 leafy spikes : corolla without crests in the throat, bearing the stamens on the mid- 

 dle of the tube : nutlets (less than a line long) oblong-ovate, very smooth, attached 

 by almost the whole length of the narrow-grooved inner angle to the narrow almost 

 subulate receptacle (gynobase) which bears the short style. Lithospermum circum- 

 scissum, Hook. & Arn. Bot. Beechey, 370. Piptocalyx circumscissus, Torr. Bot. 

 Wilkes Exp. 414, t. 12 B; Watson, 1. c. 240. 



Southwestern borders of the State and along the eastern side of the Sierra Nevada ; also through- 

 out the interior arid region to Utah, Washington Territory, and Wyoming. 



4. Calyx (as in the (jenus generally) deeply 5-parted, persistent, or sometimes at 

 maturity falling off ivhole with the fruit enclosed: nutlets attached by the ven- 

 tral face or angle, either from base to near the middle or for almost the ivhole 

 length, to a high pyramidal or subulate receptacle (gynobase), which when 

 slender is commonly called the base of the style : the scar either a narrow 

 groove or broader. KRYXITZKIA, Gray, 1. c. 



There are several species besides the following in the interior region, some extending to the 

 plains east of the Rocky Mountains and to Texas. 



* Nutlets rounded (or at least not margined or acute-angled] at the sides, attached to 

 a slender mostly subulate gynobase by a narrow (or in No. 12 downwardly ividen- 

 ing) scar or groove, occupying nearly its whole length : calyx very hispid, much 

 disposed to fall off when ripe as a sort of bur : style short : corolla small or minute : 

 annuals, mostly low and slender : flowers in at length elongated bractless spikes. 

 (Krynitzkia, Fischer & Meyer.) 



-*- Nutlets very smooth and shining. 



9. E. oxycaryum, Gray. Hirsute and somewhat canescent, a span to a foot 

 high, slender : leaves narrowly linear : spikes rather densely* flowered, at length 

 strict : corolla naked in the throat : bristles of fruiting calyx rigid, partly reflexed, 

 inclined to have hooked tips : only one nutlet maturing, that lanceolate-ovate (a line 

 and a half long), much longer than the gynobase, to which it is attached only by 

 the lower part of the slender ventral groove. Proc. Am. Acad. 1. c. 



Open grounds from Tejon to Oregon, also Arizona. Corolla only about 2 lines wide. 



1 0. E. leiocarpum, Watson, 1. c. Eough-hispid and loosely branched : leaves 

 linear : spikes often becoming loosely-flowered below : corolla (2 or 3 lines wide) 

 with crests in the throat : calyx very bristly : nutlets all 4 maturing, ovate or 

 oblong-ovate (barely a line long), attached by the greater part of the slender groove 



