— 76 — 
— Sporæ, in thecis myriosporis, longit. 0,003-4, crass. 
0,001 millim. Gel. hym. I cœrulescens, dein vinose rube- 
scens. Hypothecium infra etiam continuation nigrum. 
Saxicola in Gallia et m insula Jersey. 
1512. L. dendographa Nyl. 1864, p. 488. — Thallus macula 
cinerascente indicatus vel nullus; apothecia atra linearia, 
margine crassiusculo, epithecio angustato demum expla- 
nato, intus concoloria; thecæ polysporæ, sporæ incolores 
ellipsoideæ, longit. 0,005-8, crass. 0,003-4 millim. Gel. 
hym. 1 vinose rubens ; hypothecium fuscum ; paraphyses 
graciles irregulares. 
Ulmicola in Gallia occidentali. 
LXXVIII. — XYLOGRAPHA Fr. pr. p., Nyl. 
1513. X. platytropa Nyl. 1868, p. 163. — Thallus macula alba 
indicatus ; apothecia nigra innata rotundato-oblonga, sæpe 
perithecio fere thallodeo-obducto, inde fere platygraphidea. 
Thecæ monosporæ, rarius bisporæ; sporæ incolores vel 
dilute fuscæ oblongæ, submurali-divisæ, 6-10 loculares, 
loculis sæpius biloculosis, longit 0,022-30, crass. 0,006-8 
millim. Gel. hvm. I cœrulescens, dein rubescens vel fui- 
vescens. Epithecium et hypothecium fuscescentia. Spccies 
peculiaris. 
Lignicola in Finlandia. 
1514. X* laricicola Nyl. 1875, p. 13. — Thallus vix ullus; apo¬ 
thecia nigra superficialia oblonga sparsa, demum margine 
evanescente. Sporæ 8 n ®ellipsoideæ simplices,longit. 0,012- 
15, crass 0,007-8 millim. Gel. hym. I vinose fulvescens. 
Paraphyses nullævel membranaceæ non normales. Species 
omnino distincta a ceteris. 
In Scotia. 
1515. X. cedrina Nyl. 1878, p. 345. — Thallus macula albida 
indicatus. Apothecia nigra, lanceolata, submarginata. 
Sporæ 8 n ® ellipsoideæ vel oblongæ, simplices, longit. 
0,015-24, crass. 0,006-9 millim. Paraphyses distinctæ 
regulares. Gel. hym. I cœrulescens. Epithecium obscure 
cœrulescens, hypothecium incolor. 
In Sahara. 
