292 HTDROPHYLLACEAE 



roundish or flat-topped, 1^^ to SVl; (or 5) inches broad; calyx densely villous, % 

 to % as long as the villous corolla; corolla funnelform (with expanded throat), 

 pale lavender to rose pink, 4 to 6V2 lines long; filaments unequally inserted below 

 the middle of corolla-tube, adherent below insertion, the adherent portion hairy 

 and narrowly winged; capsule densely white-hairy, about 8 to 12-seeded; seeds 

 finely striate-retieulate. 



Gravelly or rocky ground of stream beds and washes in and bordering the moun- 

 tains, 50 to 6000 feet : cismontane Southern California from the Mt. Piiios region 

 of southwestern Kern Co. to San Diego Co. Apr. -June. 



Locs. — San Emigdio Potreros, near Mt. Pinos. sw. Kern Co., Hall 6391; Sespe Creek, Ventura 

 Co., Munz 9366; Ojai Valley, Ventura Co., Thacher 38; Echo Mt., San Gabriel Mts., Peirson 171 ; 

 Eeche Canon, se. of San Bernardino, Parish 2645; Murray Caiion, San Jacinto Mts., ace. Peirson; 

 Orange Park, Santiago Canon, Santa Ana Mts., Alice King ; San Jacinto River, San JaciDto Val- 

 ley, Jcpson 12.57a; Dripping Spr., 3 mi. westerly from Nigger Valley, sw. Riverside Co., Jepson 

 19,213 ; La JoUa, San Diego Co., Jepson 11,838. 



Note on variations. — In most respects Eriodictyon crassifolium is constant or fairly uniform 

 in its characters save in thickness of tomentum on the upper side of the leaf, in hue of leaf and 

 in breadth of leaf. In var. denudatum Abrams the leaves are narrower (6 to 8 lines wide), green 

 and thinly pubescent above. This form occurs in southwestern Kern Co. (San Emigdio Caiion, 

 Davy 2026) and occurs frequently in Ventura Co. (Mt. Piiios, Hall 6587; lower Sespe Creek, 

 Epling 4' Ellison; Wheeler Hot Sprs., Munz 13,158). But the broad-leaved form may also ex- 

 hibit leaves green and densely pubescent above (not tomentose) as at Ramona, San Diego Co., 

 K. Brandegee. The var. nigrescens Brand, of the same region as var. denudatum, also narrow- 

 leaved, differs from var. denudatum only in its darker leaves and dark or black calyces (Frazier 

 Mt., Jones 28,584; San Francisquito Canon, Los Angeles Co., Hall 4' Chandler 7400; Sand Creek, 

 Los Angeles Co., Parish 1907). Both forms may occur sporadically as far south as San Diego Co. 

 Conversely, narrow-leaved forms may be densely white-tomentose above as in the usual broad- 

 leaved form. 



Refs. — Eriodictton ceassifolium Benth., Bot. Sulph. 35 (1844), type loc. San Diego, Bar- 

 clay; Curran, Bull. Cal. Acad. 1:201 (1885) ; Jepson, Man. 834 (1925). E. tomeniosum of many 

 authors, not Benth. (1844). E. crassifolium subsp. grayanum and var. typicum Brand; Engler, 

 Pflzr. 4=51:139 (1913). Var. nigrescens Brand; Engler, Pflzr. 4=!^i:140 (1913), type loc. Acton, 

 Los Angeles Co., Elmer 3596. Var. denudatum Abrams, Bot. Gaz. 60:129 (1915), type loc. Red 

 Reef Caiion, Topatopa Mts., Ventura Co., Abrams 4 McGregor 159. 



6. E. tomentosmn Benth. Yerba Lucia. Widely branched shrub 3 to 8 feet 

 high ; stems and leaves of adult or flowering shoots and the panicle branches covered 

 with a thick white felt; juvenile shoots green, glandular and often subglabrous; 

 leaf-blades elliptic or ovate to oblong, I14 to 6 inches long, dentate or crenate, borne 

 on short (2 to 6 lines) petioles ; flowers in a widely branched panicle 4 to 1.3 inches 

 long, the branches terminating in small dense cj'mes ; calyx densely white villous, 

 concealing the glandular hairs beneath ; corolla white, urnshaped, lYo lines long, 

 constricted at throat, the short lobes spreading or recurving ; stamens subequally 

 inserted at middle of corolla-tube, the filaments not in relief below insei-tion; cap- 

 sule densely hairy on upper half, about 10 to 12-seeded ; seeds smoothish but mi- 

 nutely punctate. 



Dry slopes and summits, 300 to 5800 feet : South Coast Ranges back of the coast 

 from Monterey Co. to western Fresno Co. and San Luis Obispo Co. June-July. 



Field note. — The diversity of leaf -size and differences in amount and character of pubescence 

 on an individual arc characteristic marks of Eriodictyon tomentosum. The leaves of ordinary or 

 flowering shoots are usually about 2 to 4 inches long and clothed on both surfaces with a dense 

 tomentum which is often silvery white (the form E. niveum Eastw.), the stems and branches of 

 the inflorescence being similarly white-tomentose. The juvenile shoots from the lower part of the 

 shrub, on the eoutrary, present a marked contrast to the adult foliage. The leaves are usually 

 much larger (6 to 7% inches long and 2% to 3% inches wide), green on both surfaces and only 

 microseopiealiy puberulent. The branches of the cymes are densely set with small corollas wliich 

 are freely worked by the honey bee. 



Locs. — Tassajara Hot Sprs., n. Monterey Co., Cox: Santa Lucia Peak, Santa Lucia Mts., 

 Jepson 4735 ; Jolon, K. Brandegee ; Bear Valley, San Benito Co., Jepson ; Lewis Creek, San Benito 

 Co., Jepson; Stone Caiion, se. Monterey Co., Jepson 15,918; Cholame Hills (w. of Parkfield), 

 Monterey Co., Jepson 19,259 ; Vineyard Caiion, ne. of San Miguel, Jepson ; Idria, San Benito Co. ; 

 Los G.atos Creek, San Carlos Range, Jepson 12,176; Zapato Chino Creek, Diablo Range, Jepson; 

 Cholame, e. San Luis Obispo Co., Lemmon; Pozo Range, s. San Luis Obispo Co., Jepson 11,988. 



