198 ROSACEAK 



subulate-dilated, those opposite the ealj'x-lobcs wider; achenes smooth or niiuutely 

 embossed. 



Sandy flats, 5 to 200 feet : ixloni: the coast from San ]\Iateo Co. to ^Monterey Co. 

 and (in less typical form) to Santa Barbara Co. Apr.- June. 



Locs. — Colnia, San Mateo Co., Elmer 503C ; Corallitos, Santa Cruz Co., Jcpson 105p; Pacific 

 Grove, Elmer 43S9. The following spms. are intermediate toward the variety puberula Jepson: 

 Monterey, Jcpson 97G3b, 5705 (very glandular, cyme much branched, the flowers not capitately 

 congested) ; Arroyo Grande, Alice King; Bicknell sta., Santa Barbara Co., Jepson 12,680; Surf, 

 Santa Barbara Co., A'. Brandcgce. The following spms. vary towards P. kelloggii Greene: Coral- 

 litos, Santa Cruz Co., Jepson 112p; Pescadero, San Mateo Co., Crum 710. 



Geog. note. — No sharp distinctions segregate Potcntilla lindleyi from its southern phase, 

 the var. puberula of Southern California. Plants from San Luis Obispo and Santa Barbara 

 counties are often intermediate as to height and congestion of inflorescence. Plants correspond- 

 ing most closely to the original description occur at Monterey and Pacific Grove, where Douglas 

 might well have made the type collection. North of this region P. lindleyi apparently intergrades 

 with P. kelloggii. Plants in exposed situations near the sea are very strongly aromatic. In such 

 plants the stems are stout, erect, or sometimes prostrate (Pacific Grove, Crum 1409). The calyx- 

 tube is usually rust-color. 



Var. puberula Jepson. Stems few, erect, 9 to 24 inches high ; cymes more open-paniculate ; 

 filaments usually very broadly subulate-dilated. — Open slopes, sandy or gravelly soil, 150 to 1500 

 feet: San Luis Obispo Co. to San Diego Co. Apr.- July. 



Locs. — Price Canon, San Luis Obispo, K. Brandegee; Purisima Hills, n. Santa Barbara Co., 

 Jepson 11,945 (cymes many-flowered, open-paniculate) ; San Marcos grade, Santa Inez Mts., 

 Jepson 12,143 (less pubescent and glandular) ; Ojai Valley, Hubby; Eaton Caiion, San Gabriel 

 Mts., Peirson 362; Colton, San Bernardino Valley, Parish 2006; Pala, San Diego Co., Mum 

 10,366; Carlsbad, w. San Diego Co., Parish 4474; Mesa Grande, San Diego Co., E. Ferguson 105. 



Var. lepida Crum var. n. Stems slender, erect or decumbent-ascending ; herbage less glandu- 

 lar; leaflets thinner, more remote; calyx-tube smaller, 1% to 1% lines wide, % to % line high; 

 petals narrowly oblong-lanceolate, white or pinkish. — (Caules graciles, erecti vel decumbente- 

 ascendentes; herbae minus glandulosae; foliola tenuiora, remotiora; tuba calycis parvior, lin. 

 1^-1% latum, lin. %-% altum; petala anguste oblongo-Ianceolata, alba vel pallido-punicea.) — 

 Sandy soil under pines, 100 feet: Pacific Grove, Crum 1408 (type). 



Eefs. — POTENTILLA LINDLEYI Greene, Pitt. 1:101 (1887) ; Jepson, Man. 495 (1925). Eor- 

 Tcelia cuneata Lindl. Bot. Reg. sub t. 1997 (1837), type from Cal., Douglas; Eydb. Mem. Dept. 

 Bot. Columbia Univ. 2:132, pi. 66 (1898). H, douglasinna Nutt.; H. & A. Bot. Beech. 338 (1838) 

 as synonym. P. californiea var. cuneata Gray, Proc. Am. Acad. 6:529 (1865). P. cuneata Baill. 

 Hist. PI. 1:369 (1866) ; M. & J. Bull. S. Cal. Acad. 24:9 (1925) ; not P. cuneata Wallich (1828). 

 Horkelia californiea B. & W. Bot. Cal. 1:181 (1876) in part. P. muUijuqa Greene, Fl. Fr. 66 

 (1891) ; Jepson, Fl. W. Mid. Cal. 282 (1901), ed. 2, 209 (1911) ; not P. mufti juga Lehm. (1849). 

 Var. PUBERULA Jepson, Man. 495 (1925). P. puberula Greene, Pitt. 1:102 (1887), type loc. 

 mesas near San Bernardino, S. B. Parish 279. Horkelia puberula Eydb. Bull. Torr. Club 25:55 

 (1898). H. platycalyx Eydb. Mem. Dept. Bot. Columbia Univ. 2:131, pi. 64 (1898), type loc. 

 Santa Barbara, TV. E. WheelocTc. Var. lepida Crum. 



39. P. kelloggii Greene. Coast Honey-dew. Stems stout, erect, 1 to 2 feet 

 high; herbage siibsilky, or often velvety, aromatic, obscurely glandular; leaves 

 many, pinnate, the blades 4 to 9 inches long; petioles 1 to 4^/2 inches long; leaflets 

 11 to 17, obovate, cuneate at base (or the distal often obcuneate-oblong), 6 to 12 

 lines long, many-toothed above the base, the teeth ovate or oblong-ovate, not deeply 

 incised; cymes dichotomously branclied, the flower clusters usually congested; 

 flowers white, 6 to 7 lines wide ; calyx-tube saucer-shaped, 2^ to 3 lines wide, 1 to 

 11/4 lines high; petals oblanceolate, 3 lines long; filaments subulate-dilated, those 

 opposite petals shorter; pistils many; achenes smooth. 



Sandy flats, 5 to 100 feet : along the coast from Marin and Alameda Cos. to 

 Monterey Co. Apr.-Aug. 



Field note. — Potentilla kelloggii in typical form has been collected at few localities. The 

 dense silky pubescence distinguishes it from P. lindleyi, and this character, together with the 

 shallow calyx-tube and congested inflorescence, from P. californiea, with which it was first asso- 

 ciated. Although Greene's observations are at variance (Pitt. 1:102), it seems certain that living 

 plants exhale the characteristic Horkelia aroma (Alameda, Kellogg, field note) as well as dried 

 ones. Living plants of the var. marinensis are markedly aromatic. 



