76 Contributions from the Gray Herbarium 
Palmer 453 (B. M., G., K., Mo., U.S.); Alvarez, 1902, Palmer 142 
(G., Mo., U. 8.); Guanasuato: Villalpando, Mendez (typE of 
V. sessilifolia: Prod.); Stare or Mexico: ledges, Tultenango 
Canyon, 7 Oct. 1902, Pringle 8677 (B. M., G., K., Mo., U. §8.). 
Mexico without definite locality: 1830, Graham 78 (K.); Parkinson 
(K.); between Santa Rosa (Queretaro) and Valladolid (Michoa- 
can), 1000-1400 m., Bonpland (TrPE of X. hispida: Par.). 
30. V. ovata (Gray), comb. nov. Herbaceous, 6-8 dm. long or 
more, the stem simple or sparsely branched, rather densely but not 
canescently spreading- or retrorse-pubescent with short and long 
hairs, and more or less granular, the long hairs deciduous in age. 
Leaves opposite below or nearly throughout, ovate or triangular- 
ovate, acute or obtusish, at base truncate-rounded or subcordate, 
regularly serrate with usually spreading deltoid teeth, 3-nerved 
and rather veiny beneath, above green, hispid with incurved 
tuberculate-based hairs, beneath green or barely subcanescent with 
a mostly softer hispid pilosity, 3-5.3 em. long, 1.5-3.5 em. wide; 
petioles hispid-pilose, 3 mm. long or less; upper leaves sometimes 
oblong-lanceolate. Heads few (4-8) in a usually loose panicle, 2.5 
em. wide, on hispid-pilose and densely glandular mostly naked 
peduncles 7.3 em. long or less; disk 0.9-1.1 em. high, 1-1.7 em. 
thick. Involucre 3-seriate, graduated, 7-8 mm. high, the phyllaries 
lanceolate-acuminate, densely tuberculate-glandular, hispid-pilose 
chiefly on margin and midline, ‘subappressed or loose above, sub- 
herbaceous, blackish-green, with 1-3 indistinct, ribs. Rays 8-14, 
“ pale yellow,” in the dry state appearing white, the nerves blackish 
and prominent when dry, 6-8 mm. long, 2-4 mm. wide; disk- 
corollas finely and densely puberulous at least below, yellow be- 
coming purplish above in age, 4.5 mm. long (tube 0.8 mm. long). 
Pales acuminate, with a tooth each side above middle, sparsely 
hispid toward apex, 7 mm. long. Achenes striatulate, 3 mm. long, 
1.6 mm. wide. Pappus none. — Gymnolomia ovata Gray! Proc. 
Am. Acad. xix. 4 (1883); Rob. & Greenm. Proc. Bost. Soc. Nat. 
Hist. xxix. 96 (1899). G. Liebmannii Klatt! Leopoldina xxiii. 90 
(1887) ; Rob. & Greenm.1.¢. Microcephalum Liebmannii Sch. Bip. 
ex Klatt, 1. c., as syn. — MEXICO: Os5acp) Cerro de San Felipe, 
2440 m., 13 Oct. 1894, Pringle 5674 .); 1. ¢., 1800 m., 26 Sept. 
1897, Conzatti & Gonzdlez 551 (G.) ; without definite locality, 
1750 m., July—Aug. 1900, Conzatti & Gonzdlez 1005 (G.); San 
