Vermischte neue Diagnosen. 255. 
tipped with long hairs; petioles usually much longer than the blades, 
sometimes 10 cm long, densely clothed with long spreading hairs; sti- 
pules broad, the free portion obtuse; pedicels bearing sessile glands; 
hypanthium whitish or rose-colored, the sepals 3 to 4 mm long; sepals 
broadly oblong, green at the rounded obtuse tip; petals white, narrowly 
linear-oblanceolate, about twice as long as the sepals; stamens and styles 
long-exserted. 
Mexico: Collected by C. G. Pringle at Trinidad, on the border of 
the States of Puebla and Hidalgo, 1904 (no. 8806). 
206. Dahlia Chisholmi Rose in Proc. U. S. Nat. Mus, XXIX (1905), 
p. 439. 
Stems 1 to 2 meters high, simple at base, but with long slender 
branches above; leafy part of stem 5 to 7 cm long, bearing 4 or 5 
pairs of closely set leaves, very hispid, upper part smooth, almost naked, 
glaucous and purplish; leaves very variable either simple or with 3 to 
5 leaflets, very hispid on both sides, like the lower part of the stem, 
strongly serrate, acute, the terminal leaflet cuneate at base; peduncle 
20 to 40 cm long, slender; flowers few; outer bracts of involucre 5, 
reflexed, green, ovate; inner bracts 8, erect; rays 8, a deep brick red, 
oblong, 25 mm long, spreading at right angles with the disk. 
Mexico: Collected by Frederick Chisholm on Hacienda de Trinidad, 
near Arcelia, Guerrero, in 1904, and flowered in the greenhouse of the 
Department of Agriculture in November, 1904 (no. 10573); also sent from 
Guadalajara (station not mentioned) in 1904, and flowered in May, 1905 
(no. 9884, type). 
207. Bihai geniculata R. E. Griggs in Torreya, VII (1908), p. 230. 
Plant about 4 m tall (stem to base of peduncle 2 m, petiole 4—6 dm, 
blade 12,5 dm), erect, with the habit of B. Champneiana but with only 
2—3 leaves to a stalk at a time. Leaf 120—150 em long, about 30 cm 
wide, oblique, narrowed or rounded at the base, acute or suddenly very 
short-aeuminate at the tip, green and glabrous, main veins 10—13 mm 
apart. Inflorescence 20 —30 cm long, red, erect, sessile or on a peduncle 
up to 15 em long, of 9—10 bracts, which are of very unequal ages so 
that the flowers in the lower are in fruit before the upper open. Rachis 
nearly straight, stiff, the whole inflorescence including pedicels and 
flowers covered with a thin soft evanescent tomentum. Branch-bracts 
(distichous in the bud) becoming three-ranked by the twisting of the 
rachis, horizontally divaricate at anthesis, later reflexed, about 25 mm 
apart; the lowest fertile one 15—25 cm long, 3 cm around at the widest 
part, the upper a little shorter, narrowly triangular, straight-sided, scar- 
cely tapering to the very acute tip; the red of the rachis is continued 
onto the branchbracts but they are paler at the base within and without 
and have an equilateral triangle of yellow, which appears on their sides 
near the point of attachment and extends nearly to the bottom when 
young, later disappearing so that they: are entirely red after anthesis. 
Flowers 12—20 in each bract but of very diverse age, so that only about 
