380 COMPOSITAE 
Lessingia micradenia var. arachnaldes. (Greene) Ferris, Contr. Dudley Herb, 5: 101. 1958. (Lessingia 
arachnoideu tape Me rey iy Bot. ag 1910; LE. phololeuca var. arachnoidea J. T. Howell, Univ. Calif. 
Pub. Bot ; L. leptocla eee chnoidea Blake, Journ. Wash. Acad. : 271. 1929.) Habit and 
leaf-sha ape o bh Pe (oe cic vent “oleate am gs at woolly below. the heads; peer nyt bract-like leaves 
Reames tomentose on the ag oe surface; heads Boe od wered; even cre 5-8 mm. high, about 5- pee e; phyl- 
laries sely imbricate, acute, loosely woolly, very sparsely bese Sipe sessile or "hort at alked, large ands; 
outer pee tA palmately cleft; meeps br istles ork fre 5 ar un nied} ets. On serpentine, vicinity of Crystal 
Springs Lakes, San Mateo County, the type locality. Perhaps specifically — = goss basis of the abundance 
of wool on the involucres and the somewhat lar rger, more abund y flowered hea 
9. bensings leptoclada A. Gray. Sierra Lessingia. Fig. 5652. 
ia leptocl A. Gray, Proc. ates veges 7: 351. 1868. 
Lessingia po var. tenuis A. Gray 
Erect slender annual, 3-8 dm Se except depauperate forms, commonly simple at the base 
and ieakelttte about the midstem with v. ry slender divergent branches, sometimes basally 
branched, woolly when young, becoming glabrate. Basa! leaves 0. cm. long, oblanceolate 
or spatulate, mostly narrowed to a petioliform base, entire or irregularly and few-toothed, woolly ; 
stem-leaves 2.5—4 cm. long, sessile, Ape hey fewer and much reduced below the pale. siandular. 
punctate; heads solitary at the ends of the branches, sometimes in clusters of 2 or more, rarely 
somewhat spike-like, (6)12-22-flowered; involucres 5-10 we po gh, sl Stony turbinate, 
closely imbricate; phyllaries 5-7(8)-seriate, the ag nich mostly tide | punctate 
glands sparse; corollas lavender to ee purple, the eae he ate; appendages of the style- 
branches triangular, with or without a pappus- aa 1840, typically distinct to the base, 
mor rel omewhat ig “ahh united ee g 
ngs in forest, mostly Arid Transition sas Gilts Nevada, Eldorado County to Kern County, Type 
teaches: Yoserin Valley, iertrcee County. July- Oct. 
10. aces. ramuldsa A. Gray. Sonoma Lessingia. Fig. 5653. 
Lessingia ramulosa A. Gray in Benth. Pl. Hartw. ae ate 
Lessingia bicolor Greene, Leads Bot. Obs. 2: 28. 
Annuals, 2.5-4.5 dm. high from a aa tomentose base, the main stem erect and divari- 
cately inet ed, also beseetane from the base, finely and rather LS are aa ee. 
Basal and lowest leaves 3-7 c i Soy mostly oblong- oblanceolate, some n: wed t ioliform 
se, margin irregularly de pate to nearly entire, loosely tomentose, perrating : seiet per bract- 
like leaves progressively smaller, ovate, sessil, and often clasping, densely and persistently woolly 
r he lower glabrate, more or less densely b ith tack ed heads 
solitary at the ends of t nches, a wered ; invol ide, 
broadly turbinat 0 c late; phyllaries about eriate, rather loosely imbricate, thin, 
he inner oer aie oid stipitate-glandul with so larger tack-sh nds; corollas 
rose-colored o e pink, er eg scarcely enlarged and not palmately cleft; appendages 
te) ou ed c 
of the style- piasckes very short and not cusped; pappus- bristles 25-37, mostly free at the base 
Clay soil on slopes or in valleys, Upper pie Seal North Coast Ranges, Mendocino County to Sonoma 
County. Type bean near Sonoma, — ese Aug ich 
Lessingia ram var. adenéphora (Gre — Syn. FI. Amer. ed. 2. 446. 1886. Pec 
singia adenophora “unr Bull. alt. gon 190. 188 : Visas smaller, ‘stems en ‘hickened at the en- 
tose base ee basal and lower leaves mostly pene; stem-leaves ovate, woolly, margin densely lly ‘with 
tack-shaped glands; heads t cto 2 with fewer flow the involucres 3-5 m mm. a aaa: pappus  seeseg aber or 
— ted into 5 bristle ipped sin n the Inner Poast eens in Lake, Napa, and Colusa Counties. Type localit 
r Epperson’s, Lake Coun 
11. Lessingia hololetca Greene. Woolly-headed Lessingia. Fig. 5654. 
ee ——. Greene, hd ae: n. 377. 1897. 
, Lea’ ies Obs. 2: 27. 1910. 
Lessingia pid syed Green, 4 
loleuca var Man. FI. Pl. Calif. 1040. 1925. 
ect or asc ae annual, 0.5-3 dm. high. high from a thickened tomentose base, the stems 
le w or branching from the b: rather stout and densely tomentose, the branches more 
slender, stiffl ending and tardily glabrescent. Lowest leaves 1. ong, 
y as (8) vate 
oblanceolate, acute, sessile or narrowed to a petioliform base, persisting at anthesis, entire o 
arly toothed; e aes reduced, Bathe e to oblongish, sessile, becoming bract- like 
below the heads, densely tomentose and beco athe hose in age; heads mostly s pita tary on the 
ends of the branches, sometimes eeu 3 in she lent ils, ‘the flowers 13-18, p: inkish or lavender ; 
involucres 10-12 mm. long, turbinate ; phyllaries S-6-seriate, spreading, lanc Lacey sharply oe: 
glandless, the outer woolly, the inner glabrous or nearly inged apically with purple; m margin 
flowers palmately cleft pel enlarged; style eke ne with Aram appendages ; pappus- Dbtlsti¢s 
40-55, up to 8 mm. long, not united at the - 
Grasslands on hills ‘ane in valleys, Upper one; Yolo, Napa, and Sonoma Counties south to San 
Mateo County. Type locality: San Rafael, Marin per Fone Nov. 
93. CONYZAL. Sp. Pl. 861. 1753; emend. Less. Syn. Compos. 203. 1832. 
No dum 
omen conservan 
nnual or perennial herbs. Leaves alternate, pinnatifid or bipinnatifid to subentire. 
Heads small, usually numerous, disciform, whitish or minutely radiate with white or purple 
