120 



CONVOLVULACKAF. 



slig-htly exceeding or equaling the obtuse and mucronate sepals; corolla 1^2 to 2 

 inches long, white or pinkish. 



Dry hills, 2500 to 3500 feet : Lake Co, and Butte Co., rare. North to Oregon 

 and Washington. June. 



Loc3.— Lake Co. (Muhl. 4:54) ; Stirling, Butte Co., Heller 10,789. Wash. : Bingen, w. Klicki- 

 tat Co., SuTcsdorf 2S53. 



Eefs. — CoNVOLVDiiUS ATEiPLiciFOLius House, Muhl. 4:54 (1908) ; Jepson, Man. 776 (1925). 

 Calystegia atriylicifolia HaUler f., BuU. Herb. Boiss. 5:385, pi. 13, fig. 2 (1897), type from Ore., 



Howell. Convolvulus nyctaginetis Greene, Pitt. 3:327 

 (1898), type from Ore.y'Howell. 



6. C. subacaulis Greene. Hill Morninq- 

 GLORY. (Fig. 361.) Stems 1 to 15 inches long, 

 when short, erect and crowded, when longer, 

 trailing (frequently almost stemless); leaf- 

 blades ovoid or roundish-deltoid, truncate (or 

 sometimes slightly cuneate or subcordate at 

 base and either with or without divergent has- 

 tate lobes at the angles), thin, more or less hairy 

 with somewhat appressed hairs, mostly % to 

 IV2 inches long; petioles elongated, mostly 2 to 

 3 times a-s long as the blades; peduncles 1-flow- 

 ered, 14 to 1 inch long; bracts ovate, obtuse, ^4 

 to Ijy inch long, embracing but not enclosing 

 the calyx, sparingly or moderately pubescent; 

 calyx glabrous; corolla campanulate-funnel- 

 form, angularly 5-lobed, I14 to 214 inches long, 

 white or cream-color with a purplish exterior. 



Dry open 

 hills, 100 to 

 1500 feet : San 

 Luis Obispo Co. 

 to Napa and 

 Solano Cos. 

 Apr.-June. 

 Locs.- — Islai HUI, San Luis Obispo Co., Summers 601 ; 



Pacific Grove, Tidestrom ; Greeninger Creek, Santa Cruz 



Mts., Jepson 9700, remarkably villous; Tulare Hill, Santa 



Clara Co., Jepson 12,698 ; Stanford, C. F. Baler 848 ; Hunter 



Pt., San Francisco, Jepson 12,732; Oakland Hills, Jepson 



10,395; Benieia Hills, Jepson 18,746; Petaluma, Congdon: 



Conn Valley, Napa Range, Jepson 14,524 ; Pigeon Pt., Ara- 



quipa Hills, w. Solano Co., Jepson 14,827. 



Refs. — Convolvulus subacaulis Greene, Man. Reg. 



S. P. Bay 265 (1894) ; Jepson, Fl. W. Mid. Cal. 387 (1901), 



ed. 2, 326 (1911), Man. 777, fig. 762 (1925). Calystegia 



subacaulis H. & A., Bot. Beech. 303 (1840), type from Cal., 



Douglas. Convolvulus calif ornicus Choisy ; DC., Prod. 9 :405 



(1845), based on last. Var. dolosus Jepson, Man. 777 



(1925), type loc. Berkeley Hills, Jepson 9719a; in habit and 



in flower like the species in every way save that the filaments 



bear a pair of hook-like teeth near the middle ; filaments 



sparingly glandular short-hairy at base. In Wallich's Nu- 

 merical List under no. 2256 (1828) occurs the binomial Con- Fig. 362. Convolvulus mala- 



volvulus subacaulis Buch-Ham. as a synonym (?) of C. bar- cophyllus Greene, a. habit, X % ; 



lerioides Buch-Ham., both nomina nuda. "' leaf, X % ; c, pistu, X 1. 



Fig. 361. Convolvulus subacaulis 

 Greene, a, habit, X % ; h, d, stamens, 

 X 1 ; c, pistil, X 1. 



7. C. malacophyllus Greene. Woolly Morning-glory. (Fig. 362.) Stems 

 ascending or trailing, 3 to 12 inches long, from fleshy but slender rootstocks; herb- 

 age with a dense velvety or plushy pubescence; leaf -blades triangular-hastate, % 



