254 Vermischte neue Diagnosen. 
Mexiko: [Collected by Frederick Chisholm from Hacienda de 
Trinidad, Arcelia, Guerrero, June, 1904 (Section Plant Intro. Dept. Agr., 
no. 11260). 
203. Nolina Altamiranoana Rose in Proc. U. S. Nat, Mus, XXIX (1905), 
p- 438. 
Trunk 2 to 3 meters high, crowned by a rosette of ascending leaves; 
leaves 40 to 60 cm long, 7 cm broad at insertion, 2 cm broad a little 
above the base, thence gradually tapering into a long slender acumi- 
nation, pale green, the margin serrulate; inflorescence 1 to 2 meters 
long, forming a much-branched panicle; bracts subtending the flowers 
very thin and papery; perianth of male flowers with obtuse segments; 
female flowers with the 3 outer perianth segments persistent, scarious- 
margined; fruiting pedicles slender, jointed near the base, glabrous; fruit 
3-lobed, a little broader than high, the walls very thin, 3-celled, each 
cell 2-ovuled; seeds nearly globular. 
Known only from the Valley of Mexico. 
Mountains of Guadalupe, M. Bourgeau, 1865—1866 (no. 520). 
Slopes of Rio Hondo Canyon, C. G. Pringle, April 22, 1898 (no. 6787). 
Bluff above Santa Fe, C. G. Pringle, March 23, 1899 (no. 8060, type); 
J. N. Rose, July 11, 1901 (no. 5388). 
Certain specimens of this species were taken by Mr. Baker to be 
one of his varieties of B. recurvata or the equivalent of Lemaires B. 
stricta, and by Mr. Hemsley to be his Nolina recurvata. The habits of 
these plants, however, are very different indeed. The one here described 
as new never has a swollen base; the leaves are not very long, are 
rather stiff, and are not drooping except in age. 
204. Parnassia Mexicana Rose in Proc. U. S. Nat. Mus., XXIX (1905), 
p. 438. 
Petioles of the basal leaves slender, 2 to 4 cm long; blades oblong, 
obtuse, cuneate at base, 4 to 6 cm long, 1 to 2 em broad; scape 30 to 
35 cm high; braet ovate, obtuse, borne below the middle of the scape; 
sépals oblong, obtuse, 5 to 7-nerved, 7 mm long; petals oblong, 12 mm 
long, 5-nerved, fimbriate towards the base; filaments stout; staminodial 
scale broad, with several long gland-tipped filaments. 
Mexico: Collected by C. H. T. Townsend and C. M. Barber, in 
the Sierra Madre near Chuichupa, Chihuahua, September 6, 1889 
(no. 431). ; 
This species is probably nearest P. intermedia, but it has very 
different leaves. 
205. Heuchera acutifolia Rose in Proc. U. S. Nat. Mus., XXIX (1905), 
p. 438. 
Perennial, with strong, erect or ascending rootstock; flowering 
branches 30 to 50 cm high, green, slightly hairy below, above somewhat 
glandular-puberulent; blades of the basal leaves 3 to 6 cm wide, cordate, 
somewhat 3 to 5 lobed, the lobes triangular and more or less acute, 
when young very pubescent on both sides, sharply toothed, the teeth 
