oe gon! 
BLAKE—REVISION OF OYEDAEA. 421 
10 mm. long; achenes strongly compressed, cuneate-obovate, blackish, nearly 
glabrous, the 2 wings usually aristate-dentate at apex, sometimes spinulose-lobulate 
on margin, 4 to 5.2 mm. long, 2 to 3.2 mm. wide; awns 2, slender, fragile, unequal, 
2.5 mm. long or less, each often with 2 much shorter ones at base; squamellae about 
10, lanceolate, acute, unequal, united at base into a cup, 0.3 to 0.56 mm. long. 
TypE LOCALITY: On the road to Huaulta, Puebla. Mexico. 
SPECIMENS EXAMINED: 
San Luis Porosf: Tamasopo Canyon, 1890, Pringle 3212 (G, N). 
Puresia: On the road to Huaulta, October, 1858, Ervendberg 97 (type; G). 
Orizaba, Botteri 619 (G). Valley of Orizaba, September 8, 1865-1866, 
Bourgeau 2994 (type collection of O. ampeloides; G, K, N). 
Oyedaea ovalifolia, the only Mexican species of the genus, may be distinguished by 
its oval or ovate, thickish, merely strigillose leaves, and short involucre of broad 
blunt phyllaries without distinct herbaceous tips. 
DOUBTFUL SPECIES. 
OYEDAEA CUERVIANA Triana, Ann. Sci. Nat. IV. 9: 39. 1858. 
Stem fruticose, branching; branches appressed-villous-canescent; leaves ovate- 
lanceolate, acute, triplinerved, remotely and minutely serrulate, with revolute 
margin, above scabrous-hirtellous, beneath villous, attenuate into the petiole, the 
petioles pubescent above; heads corymbose, peduncled, the peduncles rather long, 
naked or usually leafy; involucral scales pilose without, the outer foliaceous, linear- 
lanceolate, acute, entire, the inner submembranaceous, obtuse, ciliate; ligules linear; 
achenes of disk winged, black-dotted. 
Grows between Ubala and Gachala in temperate places, in the Province of Bogoté 
(Colombia), at an altitude of 1,500 meters. 
The above translated description represents all that is known of this plant. The 
type, according to Triana’s catalogue in the British Museum, was numbered 1520 
(specimen no. 5). 
EXCLUDED SPECIES. 
OYEDAEA ANGUSTIFOLIA Gardn. Lond. Journ. Bot. 7: 293. 1848. 
This species, based on a collection made by Gardner (no. 2216) between the Rio 
Camde and Oeiras, Piauhy, Brazil, has a cuneate thickened achene with narrow pale 
but not truly winged margins produced into slight ears at the truncate apex of the 
achene, and a very narrow cupuliform pappus of united squamellae and two awns. 
On each side of the achene at base is a subcrustaceous, slightly two-lobed, appressed 
appendage such as is found in various species of Asptlia, to which genus this species 
clearly belongs. As the name angustifolia has already been used twice in the latter 
genus, the present plant may take the name of Aspilia cupulata. Fragments of the 
type collection are in the Gray Herbarium. 
OYEDAEA BONPLANDIANA (Gardn.) Benth.; Baker in Mart. Fl. Bras, 6°: 206. 1884. 
Viguiera bonplandiana Gardn. Lond. Journ. Bot. 7: 399. 1848. 
This species, based on Gardner 2217 and 2218 from the Province of Piauhy, Brazil, 
has a wingless, cuneate, somewhat 4-angled achene auriculate at apex and cucullate- 
appendaged at base, as in the preceding species, and must likewise be referred to 
Aspilia, as Aspilia bonplandiana (Gardn.) Blake. 
OYEDAEA HELIANTHOIDES Triana, Ann. Sci. Nat. IV. 9: 39. 1858. 
This species, the type of which I have never seen, is, from description, a species 
of either Steiractinia or Perymenium. 
OYEDAEA LIPPIOIDES Baker in Mart. Fl. Bras. 6°: 208. 1884. 
A Brazilian species, Dimerostemma lippioides (Baker) Blake." 
11 Contr. Gray Herb. n. ser. 52: 15. 1917. 
