1895.] Composite from Guatemala. 53 
spreading); the lower portion of the tube sharply 5-angled 
with tuberculate ridges, differing sharply from the upper por- 
tion: anthers caudate; filaments free and pubescent, arising 
from the top of the angled base of the corolla tube: stigma 
lobes short and obtuse, coalescent to maturity (but easily 
separable), sharply deflexed at the summit of the anther tube; 
style with an indurated bulbous base which detaches readily 
from the achene, which is linear and pubescent: pappus of num- 
erous conspicuous puberulent slightly tawny bristles about as 
long as the flowers. 
Pereziopsis Donnell-Smithii, n. sp.—Probably woody be- 
low, 1.8 to 2.4" high, densely woolly tomentose at least above: 
leaves alternate, ample, pinnately divided, white with a dense 
pannose tomentum beneath, more or less floccose woolly above 
and becoming glabrate; terminal lobe ample, broadly deltoid, 
irregularly lobed and dentate, conspicuously palmately veined, 
20™ long by 25" broad at the almost truncate base (dimen- 
sions doubtless larger in the lower leaves); lateral lobes (us- 
ually two) distant and very much smaller, the intervening 
rhachis and petiole more or less winged: inflorescence an 
ample naked corymb, with large terminal heads (about 3™ 
high) on the elongated branches, the ultimate divisions brac- 
teate: involucral scales narrowly linear and long acuminate, 
flowers over 20™ long.—Rio de Los Esclavos, Depart. 
Santa Rosa, alt. 2, 500", February 1893, Heyde & Lux 4,527. 
VI 
EXPLANATION OF PLATES V AND VI. 
V. Mallinoa corymbosa. Fig.1. Plant, nat. size.—Fig. 2. A head, en- 
larged—Fig. 3. A flower, enlarged.—Fig. 4. Two stamens, enlarged.— 
Fig. 5. A pistil, enlarged. 
VI. Pereziopsis Donnell-Smithii. Fig. 1. Portion of a flower cluster, 
nat. size.—Fig. 2. A leaf, natural size—Fig. 3. A flower, enlarged.— 
Fig. 4. The same laid open, enlarged.—Fig. 5. A stamen, enlarged.— 
Fig. 6. A pistil, enlarged.—Fig. 7. An achene, nat. size. 
oF 
