Watson: THE GENUS HELIOCARPUS 119 
edges ciliate toward the ps five-nerved; stamens about forty; 
style much longer than ovary, br iefly bifid at the tip; fruit 
sihduines faces grooved ie en the cells, stellate but withou 
plumose hairs, fringe not longer than diameter of the body. 
ae Palmer roo, Chihuahua, Gray Herbarium; Palmer 629, 
Sonora; Rose 1694, Sinaloa. 
Owing to variability of leaf-indument, the characteristic 
fruit is the final criterion of this species. 
5. HreLIocArPpus PALMERIS. Watson, Proc. Am. Acad. 21: 420. 
Shrub, 2.5-3.5 m. high; branchlets, also of the panicle, and 
petioles covered Rea ibe: short stellate tomentum; leaves 
integral, broad-ovate, nate, eee ones s subcordate, stel- 
late-puberulent above, analy stellate but not tomentose below, 
more so on the nerves, 6-14 X 4-9 cm.; panicle leafy and diffuse; 
sepals five, ho oded and appendaged; petals, in the pistillate 
flower: e fil nts in 
ovary, bifid, lobes spreading: fruit oblong or orbicular, 3 m 
diameter, grooved bet the cells, faces densely oh hc bat 
without plumose hairs, iaaie dense, narrower than the diameter 
of the body, 
Type: Palmer 191, Chihuahua, Gray Herbarium; Palmer 97, 
Chihuahua. 
6. HELIOCAREUS ATTENUATUS 5. Watson, Proc. Am. Acad. ae 
21: 420. 1886 , 
Sh 2.5 m. high; branches a petioles softly selette 
es Hheigaier. ovate-lanceola ate, very long-acuminate, su 
be 
flowers greenish yellow; sepals four or five, ed, dis 
appendaged; petals linear, narrow, much shorter | hat 
sepals, densely stellate on the outside eaghaie: the base, glan 
stamens about 18; ovary only slightly co ia style twi 
the length of the’ ovary, bifid about one-fourth of its le 
lobes spreading, acute; fruit oval, 3 mm. long, 2 wide 
densely hirsute-tomentose, not stellate o or plumose, se, fringe 
than the length of the body. es 
Type: in the Gray Herbarium, number ar 
duplicate type, No. 1225, in the U. 5S. National — 
Palmer 00; Chihuahua; Palmer 647, 732, 7335 Sonora. Ss 
“ts 
te a 
