120 16. CHIODECTONACEAE [58. Glyphis 



A. Paraphyses branched and netlike interwoven 



B. Spores transversely septate 



C. Spores hyaline .61. Chiodecton 



C. Spores brown 62. Sclerophyton 



B. Spores transversely and longitudinally septate 63. Enterostigma 



58. Glyphis Ach., Syn. Meth. Lich. 106. 1814. 



Thallus crustose, superficial, rudimentary, commonly devoid of differentiation 

 into layers, attached to the substratum by hyphal rhizoids; apothecia clustered 

 into a more or less raised stroma, immersed, round to elongated, often branched, 

 the disk flat, the exciple colored' like the disk, well developed, smooth or furrowed; 

 hypothecium and hymenium hyaline; paraphyses unbranched, free; asci oblong 

 to clavate, with the apical wall somewhat thickened; spores 4-8, hyaline, oblong- 

 ellipsoid to ellipsoid or fusiform, 3-1 1 -septate, the cells lenticular. 



The algal host is Trentepohlia. 



A. Apothecia much branched, often confluent 2. G. confluens 



A. Apothecia rarely branched, not confluent 1. G. cicatricosa 



1. Glyphis cicatricosa Ach., Syn. Meth. Lich. 107. 1814. 



G. Achariana Tuck. G. javulosa Ach. 



Thallus mainly and wholly within the substratum, indicated at the surface by 

 a whitish, greenish gray, olive-green, or brownish coloration; stromata raised, cir- 

 cular to irregular or elongated, 1-5 mm. across in various directions, whitish at 

 the surface, thick, blackish within; apothecia small, 0.15-0.8 mm. across, im- 

 mersed usually many in each stroma, circular to irregular or elongated, rarely 

 branched, the disk slightly concave to flat, dark brown; spores 8, ellipsoid, 5-11- 

 septate, 22-46 X 7-11 fi. 



On trees, from North Carolina to Florida, and westward to Louisiana and 

 Texas. 



2. Glyphis confluens Zenk., in Goeb. & Kunze, Pharmazent. Waarenk. 1:163. pi. 



21, f. 6. 1827. 



G. javulosa var. confluens (Zenk.) Mull. Arg. G. cicatricosa var. confluens 

 (Zenk.) Zahlbr. 



Thallus mainly or wholly within the substratum, indicated at the surface by 

 an olive-green to brownish coloration; stromata raised, circular to irregular, 2-5 

 mm. across, whitish to brownish above, thick, blackish within; apothecia small to 

 middle-sized, 0.2-0.35 X 0.2-2 mm., immersed usually many in each stroma, round 

 to elongated and much branched, often confluent laterally or terminally, the disk 

 slightly concave to flat, dark brown; spores 8, ellipsoid, 5-9-septate, 20-45 X 

 8-14 /i. 



On trees, Florida. Regarded by some as a subspecies of G. cicatricosa Ach., 

 which may be a better disposition than ours. 



59. Sarcographa Fee, Essai Crypt. 58. 1824. 



Thallus crustose, superficial, rudimentary, commonly devoid of differentiation 

 into layers, attached to the substratum by hyphal rhizoids; apothecia clustered in 

 flattened stromata, immersed, round to elongated, often branched, the disk flat, 

 the exciple colored like the disk, well developed, smooth or furrowed; hypothecium 

 hyaline to dark brown; hymenium hyaline or brownish above; paraphyses un- 

 branched, free; asci oblong to clavate, with the apical wall somewhat thickened; 

 spores 4-8, brown, oblong-ellipsoid to ellipsoid or fusiform, 3-11-septate, the cells 

 lenticular. 



The algal host is Trentepohlia. 



A. Spores more than 16^ in length 



B. Thallus an ashy green to brownish coloration 2. S. labyrinthica 



B. Thallus an ashy white or dull grayish coloration .... 3. S. medusulina 



A. Spores not more than 16 /a in length 1. S. tricosa 



