114 15. GRAPHIDACEAE [55. Graphina 



C. Spores not so large, reaching 30-45 fi in length 



D. Spores 7— 13-septate transversely 13. G. acrophaea 



D. Spores 5-7- or rarely 9-septate transversely 



E. The disk whitish 8. G. subnitida 



E. The disk pale flesh-colored to brownish 5. G. virginalis 



B. Spores not more than 30 // in length 



C. Spores 3-5- or rarely 7-septate transversely 



D. Spores 3-septate transversely 4. G. sophisticascens 



D. Spores 3-more-septate transversely 

 E. Thallus mealy, scaly, or 



roughly granulose 2. G. glaucoderma Cypressi 



E. Thallus smooth 



F. Apothecia 2-6 mm. in length 7. G. Scolecitis 



F. Apothecia not more than 3 mm. in length 



G. The disk whitish 3. G. leuconephela 



G. The disk whitish to brownish yellow . . 2. G. glaucoderma 

 C. Spores 7-9-septate transversely 



D. Apothecia 3-8 X 0.4-0.9 mm 6. G. adscribens 



D. Apothecia 2-5 X 0.15-0.25 mm 9. G. subnitidula 



A. Spores 1, 2, 4 or rarely 6-8 in each ascus 

 B. Spores 1 or 2 in each ascus 



C. The disk whitish pruinose 17. G. mendax 



C. The disk reddish brown 16. G. subvirginalis fulvescens 



B. Spores 2-4 or rarely 6-8 in an ascus, very rarely only 1 

 C. Spores reaching 75-140 fi in length 



D. Spores 9-13-septate transversely 12. G. leprocarpa 



D. Spores 19-31-septate transversely 



E. The exciple 2-3 times striate 15. G. Acharii 



E. The exciple obscurely striate 14. G. abaphoides 



C. Spores not more than 75 fi in length 



D. Spores not more than 13-septate transversely 



E. Spores 15-22 X 4-8 //, 1- G. incrustans 



E. Spores more than 20 /x in length 11. G. substriatula 



D. Spores 13-27-septate transversely 16. G. subvirginalis 



1. Graphina incrustans (Fee) Mull. Arg., Mem. Soc. Phys. Hist. Nat. Geneve 



29:47. 1887. 



Fissurina incrustans Fee, Essai Crypt. 60. pi. 13, f. 2. 1824. Graphis nitidescens 

 Nyl. 



Thallus thin, smooth and shining, yellow to olive-green or brown; apothecia 

 short or somewhat elongated, but narrow, 1-3 X 0.15-0.25 mm., immersed or break- 

 ing through and somewhat raised, unbranched, the disk closed to open and pale 

 brown, the proper exciple pale brown, covered laterally and at first above by a 

 whitish thalloid one; hypothecium hyaline; spores 4-8, oblong-ovoid, 3-5-septate 

 transversely and 1-3-septate longitudinally, 15-22 X 4-8//,. 



On trees, Florida. 



2. Graphina glaucoderma (Nyl.) Mull. Arg., Bull. Herb. Boiss. 3:47,48. 1895. 



Graphis glaucoderma Nyl., Flora 69:103. 1886. 



Thallus thin to moderately thick, smooth and shining, greenish gray or tinged 

 with olive; apothecia colored like the thallus or lighter, short and somewhat 

 elongated, and of moderate width, 0.8-3 X 0.25-0.5 mm., immersed-erumpent, 

 straight to variously curved or flexuous, confluently more or less branched, the 

 disk closed to finally opened widely, whitish to brownish yellow, the proper exciple 

 thin, brown; hypothecium hyaline to light brown; spores 8, ellipsoid, 3-5-septate 

 transversely and 1 -septate longitudinally, 14-20 X 6-9 p.. 



On trees, Louisiana, Florida, Georgia, and Alabama. 



var. Cypressi (Mull. Arg.) Fink n. comb. 

 G. Cypressi Miill. Arg., Bull. Herb. Boiss. 2:47. 1895. 

 Thallus dull white, mealy, scaly, or roughly granulose; exciple thicker. 

 On bald cypress, near St. Martinsville, Louisiana. 





