5° BOTANICAL GAZETTE [JULY 
S. macrostachya (in part) as interpreted by RoWLEE, Bull. Torr. Bot. Club 
27:250. pl. 9, fig. 5 (named S. macrostachya cusickii in the description of the 
plate but this variety never published). 1900; not of Andersson. 
Shrub 2-3 (or more) m. in height; branchlets slender, the older 
dark brown, longitudinally striated, the younger yellowish, more or 
less tomentose, those of the season densely white villous-tomentose 
with spreading white or gray hairs. 
Leaves sessile or subsessile, usually stipulate; stipules ovate to 
lanceolate, acute, entire or occasionally minutely denticulate; peti- 
oles none or 2-4 mm. long on vigorous sterile shoots; blades nar- 
rowly to broadly lanceolate or elliptic-lanceolate; the smaller 
rounded, the larger somewhat narrowed and acute at the base, 
acute or short-acuminate at the apex, terminating in an extremely 
sharp spinulose point, 2.5—5 cm. long, 8-15 mm. wide, on vigorous 
sterile shoots larger, 5—7 cm. long, 15-20 mm. wide, all denticulate 
to spinulosely denticulate (the spinulose teeth gland-tipped, some- 
times 1 mm. in length), green and densely to thinly villous- 
tomentose with spreading hairs on both sides, especially on the 
midribs and on very young leaves, not obscuring the green color 
on fully expanded leaves, only the very youngest silvery white in 
color. 
Aments appearing after the leaves, solitary in the specimens 
seen, terminal on short leafy branches 1-4 or 5 cm. long and bear- 
ing several well developed leaves, or old aments apparently lateral 
and nearly sessile by the seasonal prolongation of the fruiting 
branchlet from the bud subtended by the apical leaf. 
Pistillate aments dense, 4-6 cm. long, spreading or drooping; 
rachis densely villous; scales mostly deciduous, broadly elliptic- 
lanceolate, acute, densely villous-tomentose with gray hairs; cap- 
sule lanceolate, acute, 5-6.5 mm. long, villous; style and stigmas 
together about 1-1.5 mm. long, style apparently o.5 mm. long 
(difficult to differentiate style from stigma in old dried material), 
divided; stigmas about 1 mm. long, divided. | 
Staminate aments not seen on typical material (on approxi- 
mately typical specimens they are 3-4 cm. long; scales elliptical, 
pilose-pubescent; stamens 2, filaments pubescent, free, anthers 
about 1 mm. long). 
