21 
somewhat convex, at first margined by the thallus, pruinose, at 
length naked, numerous. Spores oblong-ovoid, 4-6, commonly 5 
locular, the upper cell larger, brown or decolorate, .016-23 by .005-6 
mm. Reaction ot the thekes vinous red.—Florida in hb. Tuck. It 
seems to be near A. bifonnis. 
*** Spores muriform — Arthothelium. 
f Apoth. pale. 
121. A. alhatula. Mull. Arg. Thallus whitish ash-colored, thin, 
rugose. Apoth. whitish fiesh-colored, orbicular, obtusely angulose 
or slightly elongated, prominent, convex. Spores fusiform-ellipsoid, 
8 locular, the cells three locellate, .030 by .010 mm — Parag., p. 26. 
—Paraguav. 
122. A. lencocarpa, Miill. Arg. Thallus white, thickish, rug- 
ulose. Apoth. mealy-white, hemispherical, somewhat regular. 
Spores 8 locular, the cells once or twice divided, .075 by .018 mm. 
Socotr.p. 13.—Socotra, Africa. 
123. A. aleurocarpa, Nyl. Thallus thin or evanescent, glau- 
cescent. Apoth. snow-white, mealy, superficial, slightly convex, 
linear or various in form. Spores ellipsoid, muriform, .100-120 by 
.046-50 mm. Reaction of the hymenium blue, of the thekes vinous 
red.— Pr. N. Gr., p. 572.—New Grenada. 
124. A. aleurodes, Nyl. Thallus thin, glaucescent. Apoth. 
white, mealy, not prominent, difiform, indeterminate. Spores ellip¬ 
soid, muriform, .068-75 by .030-35 mm. Reaction of the thekes 
vinous red.— Antill., p. 17.—Antilles. 
125. A. soriblitella, Nyl. Thallus thin, white, determinate. 
Apoth. white, rounded, convex or depressed-pulvinate. Spores el¬ 
lipsoid, muriform, .072-88 by .034-44 mm. Reaction blue.— Pr. IV. 
Gr., p. 102.—New Grenada. Spores figured in Edit. 1, t. 42, f. 49. 
126. A. subsiinillima, Nyl. Similar to A. albovirens, but the 
spores ellipsoid, muriform, .050-62 by .026-38 mm. Reaction blue. 
— Syn. N. Caled., p. 64.—New Caledonia. 
127. A. alenrinn, Nyl. Thallus thin, white, somewhat mealy. 
Apoth. darkening, thinly white pruinose, minute, crowded. Spores 
ellipsoid, muriform, .032-35 by .020-21 mm. Reaction none.— Pr. 
IV. Gr., p. 102.—New Grenada. 
128. A. aphanocarpa, Nyl., Art/i., p. 90 ( nomeu .,) belongs 
her Q,Jidc Nyl. Pr. N. Gr., p. 102. Spores .046-50 by .021-26 mm. 
—P'rench Guiana. 
