BORAGE FAMILY. 347 



Nutlets smooth. 



Nutlet 1, much surpassing the short gynobase. 



Corolla very small (J/j Hue broad or less); branches commonly diffuse 



5. C. microstachys 



Corolla larger (nearly or quite 1 line broad); stem rigidly erect 6. C. Haccida. 



Nutlets 4 (or 3); gynobase subulate, ]/> to as long as the nutlets. 



Groove simple, sometimes not closed at base, but not forked 7. C. leiocarpa. 



Groove forked at base, but no open areola 8. C. torreyana. 



1. C. ambigua (Gray) Greene. Much branched from the base, y 2 to 1% 

 ft. high, rough-hirsute throughout; leaves linear, 1 to 1% in. long; spikes 

 1 to 2% in. long; commonly very loose below, ternate or geminate, often 

 pedunculate; calyx exceeding 1 line in length; sepals linear, more densely hispid- 

 bristly towards the base; corolla 2% to 3 lines broad; nutlets gray, 4 or 3, 

 narrowly ovate, papillate but not pointed or prickly, the lateral angle obtuse 

 and the groove more or less closed, with the basal bifurcation open-areolate (or 

 sometimes closed?). 



Hills and mountains: St. Helena and northward throughout northern Cali- 

 fornia. 



2. C. muriculata (A. DC.) Greene. Robust, branching, rough-hirsute or his- 

 pid, % to l 1 /^ ft. high, with well-developed rather dense spikes mostly in 2s 

 and 3s at the end of the branches; calyx 1% lines long; corolla 2 or 3 lines 

 broad; nutlets 1 line long, muricate-papillose, and somewhat rugose on the 

 back; ventral groove and its basal bifurcation mostly closed; lateral angles 

 acutish, distinct. — (Eritrichium muriculatum A. DC.) 



Mt. Diablo Range from near Antioch southward. Apr. 



3. C. jonesii (Gray) Greene. Erect, strict, 7 to 14 in. high, leafy below; 

 lateral spikes from near the base or above the middle short, often sessile, the 

 terminal spikes longer in a rather close panicle ; corolla less than 1 line broad in 

 dried specimens ; sepals linear, obscurely unicostate, bristly-hispid, in fruit about 

 1 line long, slightly surpassing the rough-papillate ovate nutlets which are acutely 

 angled laterally and little more than y 2 line long; ventral groove mostly closed 

 and forked below. 



Sonoma; Mt. Tamalpais; Santa Cruz; Soledad. Nutlets sometimes smooth 

 and concave on either side of the ventral groove. 



4. C. micromeres (Gray) Greene. Slender, rather widely branched above 

 the base, 7 to 9 in. high, rough-hirsute almost throughout; spikes mostly ter- 

 minal or subterminal, not dense, 2 to 4 in. long; nutlets similar to the preceding, 

 little more than % line long, slender papillate (or on either side of the ventral 

 groove concave and either papillate or smooth). 



Santa Cruz; Los Gatos (Muhl., iii, 118); Sierra Nevada foothills at Mo- 

 kelumne Hill, Battan, the spikes after the fall of the flowers obscurely flexuous. 



5. C. microstachys Greene. At first erect and 3 or 4 in. high, later 

 diffuse with ascending or reclining branches % to 2 ft. long, bristly throughout ; 

 spikes slender, 4 to 6 in. long, rather densely flowered; sepals less than 1 line 

 long, very hispid-bristly; nutlet 1, brown, smooth, ovate, with long and slightly 

 contracted apex, slightly compressed but not angled laterally, % to 1 line long; 

 groove closed, with a minute fork at base. 



Santa Cruz Mts. ; Vaca Mts. May-June. 



6. C. flaccida (Dougl.) Greene. Strictly and rigidly erect, with few 

 ascending branches at the top, % to 1% ft. high; leaves linear; spikes 2 to 4 

 in. long, at length not crowded; corolla nearly or quite 1 line broad; fruiting 

 calyx l 1 /^ lines long, appressed to the rachis, its narrowly linear segments thick- 

 ish at base, connivent above, nearly twice as long as the nutlet, hispid and 



