STYLOCLINE COMPOSITZ 825° 
PSILOCARPHUS 
_ gon and California. 
23 STYLOCLINE Nutt. Trans. Am. Phil. Soc. viii, 338. 
Low floccose-woolly annuals with entire alternate leaves and 
small heads of inconspicuous flowers in glomerate clusters. 
Heads many-flowered ; the pistillate flowers with filiform corolla, 
several or many, in two or many series on the columnar receptacle, 
each with the ovary and achene loosely enclosed in the base or 
body of an ovate broadly boat-shaped chaff or scale of the recepta- 
cle, of scarious or firmer membranaceous texture : the hermaphro- 
dite but sterile flowers few in the centre, on the narrow summit of 
the receptacle, involucrate but not enclosed by the 4or 5 merely 
concave scales of the receptacle, their tubular corollas 4—5-toothed. 
Bracts of the involucre hyaline and inconspicuous or hardly any. 
Achenes obovate or oblong with a narrow base, slightly oblique 
or straight, the areola terminal. Pappus none to the achenes, 
polos’ a few caducous scabrous bristles around the sterile 
owers. 
—_ 
em 
Ours of § ancisrrocarPHUs Gray. Fertile flowers 5-10, their 
chaffy scales in not more than two series, boat-shaped and invol- 
ving the achene, of firm-membranaceous texture, and with a 
hyaline tip; the 5 uppermost scales sterile and larger, forming 
an involucre around the sterile flowers, open, tapering into a 
rigid incurved hooked cusp, persistent, and at length stellately 
spreading. : 
S. filaginea Gray Proc. Am. Acad, viii, 652 Canescent with a fine 
and appres<ed wool: stems slender, 1-10 inches high, erect, or diffuse and 
and branching from the base: leaves narrowly linear or somewhat dilated 
* pbeeiad 6-8 lines long: involucre outside of the woolly fructiferous scales 
oO 
scure or none: pappus to sterile flowers none, On dry stony hillsides, 
southwestern Oregon and California. 
27 PSILOCARPHUS Nutt. 1. c. 
Low floccose-woolly annuals with entire mostly opposite leaves 
and small heads of inconspicuous flowers in terminal capitate 
clusters and in the forks of the branching stems, involucrate by 
the upper leaves. Heads discoid, many-tlowered; the pistillate 
flowers with filiform corolla, numerous, in several series on the 
depressed-globose receptacle, each loosely enclosed in an obovate 
or semicordate hooded-saccate visiecular or inflated chaff or scale 
of membranaceous texture clothed with soft wool; its apex in-- 
‘trorse and more or less beaked with a hyaline scale; the her- 
maphrodite but sterile flowers few and naked in the centre, with 
tubular 4-5-toothed corolla. Bracts of the involucre few, small, 
scarious’ Achenes oblong or cylindraceous and moderately com- 
pressed, straight, small and loose in the sack of the scale, which 
is more or less open down the inner face. Pappus none. 
* Leaves all tapering below; the midrib not prominent: canescent 
with close wool throughout: fructiferous bracts not over a line long. 
a 
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