116 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
to ovate-lanceolate, bluish green, glaucous, tipped with a very sharp spine, this 
brownish black when young, grayish in age, decurrent into a horny, toothed 
margin bearing 3 or 4 brown or gray, retrorsely hooked teeth on the upper 
half of the leaf, the lower part armed with fewer and smaller spines, the 
leaves thick and very rigid; panicle 3 to 5 meters high, with 10 to 15 divergent 
lateral branches bearing subumbellate clusters of flowers; fresh flowers dull 
brownish red outside, deep yellow to orange within, 5 to 6 em. long including 
the exserted style and stamens; filaments attached by an expanded base to 
the base of the perianth segments in a saceate depression, 2 cm. long, yellow; 
anthers versatile, 15 mm. long; style slightly exceeding the stamens; fruit 
an oblong-elliptic, light brown capsule, 25 to 35 mm. long and about 20 mm. in 
diameter. 
Type in the U. 8S. National Herbarium, no. 498333, collected in the Organ 
Mountains, in June, 1906, by Paul C. Standley (no. 541). 
ADDITIONAL SPECIMENS EXAMINED: ‘Tortugas Mountain, 1911, Standley 6481; 
San Andreas Mountains, December 10, 1902, J. H. Gaut. 
This is a part of Agave applanata Mulford, but seems to be very distinct from 
Agave applanata Lem. 
EXPLANATION OF PLATE 48.—From a field photograph by K. OQ. Wooton. 
ORCHIDACEAE. 
Achroanthes porphyrea (Ridley) Wooton & Standley. 
Microstylis purpurea 8. Wats. Proc. Amer, Acad. 18: 195. 1888, not Lindl. 
Microstylis porphyrea Ridley, Journ. Linn. Soc. Bot. 24: 320, 1888. 
Achroanthes purpurea Greene, Pittonia 2: 184, 1891. 
FAGACEAE. 
Quercus confusa Wooton & Standley, sp. nov. 
A moderately large, spreading tree, 5 to 7 meters high, with short trunk, 
grayish, checked bark, and dull greenish gray, pubescent, stout twigs; leaves 
oblong, 6 to 8 cm. long, 2 to 3 cm. wide, bluish green, glabrous above, almost 
velvety beneath with yellowish stellate hairs, acute, sinuate-dentate with about 
4 coarse, mucronate, lobe-like teeth on each side, only slightly crispate; petioles 
1 cm. long or less; buds on new growth small, 2 to 3 mm. long, ovoid, with dark 
brown scales; acorn 20 to 23 mm. long, barrel-shaped, obtuse; cup hemispheric, 
15 to 18 mm. in diameter, covering the lower third of the acorn; scales much 
thickened on the back. 
Type in the U. S. National Herbarium, no. 691250, collected on Ruidoso 
Creek 5 miles east of Ruidoso Post-office, August 5, 1901, by E. O. Wooton. 
Altitude about 1650 meters. 
ADDITIONAL MATERIAL EXAMINED; Gilmores Ranch on Eagle Creek, alt, 2220 
meters, July 25, 1901, Wooton. 
This species is most nearly related to Q. fendleri, from which it differs in 
being a tree and in having still larger leaves (persistent?) and a larger acorn. 
It occurs at a lower level than is common for Q. fendleri, being at home in the 
Upper Sonoran instead of the Transition Zone, although the latter sometimes 
comes into the Upper Sonoran. 
Quercus media Wooton & Standley, sp. nov. 
Low shrub, 1 to 3 meters high, with gray, smooth bark on the older stems, 
the young branches brown, sparingly pubescent; buds about 3 mm. long, with 
