1899 | NEW SPECIES OF WESTERN PLANTS 457 
less glabrate above in age, oblong-lanceolate or oblanceolate, 
5-8 long, 1-2™ wide, on stout petioles 2-4™ long: cyme broad, 
ramose, foliaceous-bracted, on a peduncle 2" or more long, ulti- 
mate branchlets white-tomentose as well as hairy: involucres 
clavate, rather narrow, with short broad scarious-margined teeth, 
4-5™" long, tapering into a pedicel of about the same length, 
many-flowered: perianth rose-colored, about 4™ long, segments 
somewhat appressed-hairy with prominent midrib, the outer ones 
obovate cucullate, the inner longer and tapering into a marginal . 
claw: akene nearly as long as the flower, triquetrous above. 
E. molle Greene may be maintained as a species by its habit, which is 
quite different from £. giganteum. It is not at all arborescent and bears its 
few-branched cymes on stout peduncles 6-10 long. In our garden it flowers 
nearly the whole year and bloomed, as probably all the perennial species do 
under favorable circumstances, the first year from seed. All the parts of the 
flower are about one half larger than those of £. gzganieum, and the branches 
of the cyme are very dense, almost capitate. The pedicels of the perianth 
are not at all exserted in either of these species. 
Eriogonum Purpusi, n. sp.— Perennial from a branching cau- 
dex, the stems densely matted and very short: leaves white- 
tomentose on both sides, oval to oblanceolate, 3-5™" long; 
petiole longer than the blade, dilated below, glabrate on both 
Surfaces but tomentose on the margins: scapes {21.5% high, 
lanate at base, glabrous and wiry above: inflorescence a capitu- 
lum of six to ten involucres, six to ten-bracteate at base, the 
inner ones also bracteate : involucres cylindrical-turbinate, about 
3" long; segments with a thickened glabrous center, margined 
and united by their scarious portions, which are lightly floccose 
without and within, and in age give way to the base at the sinu- 
ses: perianth glabrous, white with reddish midvein, much 
exserted, spreading or reflexed, truncate at base; outer seg- 
ments ovate, exceeded by the oblong inner ones: filaments 
nearly glabrous: akene obtusely triangular, equalling the pesl- 
anth, scabrous especially on the angles. 
Argus mountains, California, about 50 
Purpus, June 1897, no. 5484. 
SAN Digco, Cat. 
oo ft. altitude, Dr. © A: 
