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34:™™™. in width. However closely then our plant may probably approach 
that form of Verrucaria chlorotica, Nyl., which was described by Borrer 
us V. olivacea, and figured, as above cited, by Leighton, we are not with- 
out reason in keeping it, for the present, apart. S. lactea, Koerb. (Zw. 
ers. D. 44. Rabenh. Lich. Eur. n. 599). On various barks. White 
Mountains (Oakes herb.). New Bedford (Mr. Willey). Pennsylvania, in 
several conditions (Dr. Michener). Apothecia of twice the size of those 
of the European specimens cited: but in other respects the American 
lichen scarcely differs, unless indeed that the 6-8-locular spores (averaging 
15-27™™™. in length, and 5-7™™"™., in width) pass often, from broad-fusi- 
form becoming dactyloid, into oblong conditions. Thekes by no means 
always lanceolate in my copy of Zw. ers. 2. 44; and they are rather 
saceate-clarate in our plant: which, however little it really differ from 
other corticoline Sagedia@, is at once distinguishable from them by its 
white thallus. S. acyspora (Verrucaria, Ny). V. epidermidis, var., Ach. 
V. albissima, NvyJ. Scand.) On bark of Birch, and Oak, Massachusetts 
(Mr. Willey). Spores varying much in length, and from fusiform to 
acicular; but other differences scarcely observable in the numerous speci- 
mens. The species is rather remarkably separated from the type of 
Sagedia by its indistinct paraphyses. Thus understood, as inclusive 
also of Leptorrhaphis, Koerb., Saqedia may be taken for equivalent to 
Endophis, Norm. Con. p. 23 (1852) from which this author, by his obser- 
vation that the apothecia of his new generic type are those of Verrucaria, 
as limited by Fries, certainly seems to exclude (though he nowhere 
mentions) Segestria lectissima. Endophis is then the oldest, but scarcely 
the preferable name. 
LXVII.—VERRUCARIA. Pers., emend. 
Verrucaria pro p., & Spherie sp., Pers. in Ust. Ann. Bot.; & Syn. Fung. 
add., p. xxvii. Verrucaria pro p., & Pyrenule spp., Ach. L. U. pp. 
51, 6£: Syn. pp. 93, 122. Eschw. Syst. p. 16. Fée Ess. p. 40. Verru- 
caria prop., Fr. 8.0. V.p.264. Mey. Entwick. p. 329. Scher. Spicil. 
pp. 53, 332. Sagedia pro p., Verrucaria sect. 1, 2. & Limborie sp., Fr. 
L. E. pp. 413, 430, 457. Mont. Apere. Morph. p. 11. Thrombii sp.. & 
Verrucarie spp., Wallr. Fl. Crypt. Germ. 1, pp. 294, 297. Pyrenula pro 
p., Verrucaria pro p., Thrombii sp., & Limboria, Scher. Enum. p. 208. 
Sagedic spp., & Verrucarie spp., Leight. Brit. Angioc. Lich. pp. 22,35. 
Thrombiispp., Verrucaria max. p.. Amphoridium, Lithoicea, Bagliettoa, 
Arthopyrenie dein Acrocordie sp., Thelidium, Porphyriospora, Poly- 
blasti# spp., & Sporodictron, Mass. Opp. cit. in locis. Verrucaria, 
Sagedia pro p., & Thelotrematis spp.. Naeg. & Hepp in Hepp Flecht. 
Eur. t.2. Verrucaria pro p., & Limboria, Ny]. Pyrenoc. pp. 22, 36, 62: 
Lich. Scand. p. 270. Verrucaria, Bagliettoa, Acrocordie sp., Theli- 
dium, & Spheromphale pr. p., Koerb. Syst.. in loee. Thrombium, 
