175. Anaptychia] 44. PHYSCIACEAE 389 



A. Thallus foliose 



B. Lobes short and rather narrow 



C. Spores 14-21 X 7.5-10.5 /* 3. A. granulifera 



C. Spores more than 20 fi in length 



D. Margins minutely notched and sorediate 2. A. Ravenelii 



D. Margins crenate or crenately lobed 1. A. major 



B. Lobes more or less elongated and narrow 



C. Thallus often brownish, becoming coralloid or with 

 minute wartlike lobules toward the center 

 D. Rarely bearing coralloid branchlets, the central lobes 



becoming much crowded and imbricated 7. A. aquila 



D. Central lobes covered with minute, wartlike lobules . . .5. A. Wrightii 

 C. Thallus greenish gray to ashy, smooth toward the center or 

 throughout 



D. Margins more or less densely sorediate 4. A. speciosa 



D. Margins rarely sorediate 6. A. hypoleuca 



A. Thallus subfruticose to fruticose 



B. Thallus fruticose, small to middle-sized 

 C. Margins bearing white or darker cilia 



D. Lobes much elongated, narrow, commonly channeled below 11. A. ciliaris 



D. Lobes not so elongated and broader 9. A. comosa 



C. Margins bearing strong, much-branched, blackening cilia . 10. A. leucomela 

 B. Thallus subfruticose, small 8. A. erinacea 



1. Anaptychia major (Nyl.) Fink n. comb. 



Physcia major Nyl., Flora 41:379. 1858. A. speciosa var. major (Nyl.) Zahlbr. 



Thallus middle-sized, adnate, whitish, often coralloid-granular, the lobes not 

 much elongated and slightly branched, the margins crenate or crenately lobed, the 

 lobes sometimes fusing toward the center to form a crust; black or blackish below 

 with rhizoids of the same color; apothecia small to middle-sized, 0.5-4 mm. across, 

 the disk slightly concave, whitish pruinose to brownish black, the exciple crenu- 

 late; spores oblong-ellipsoid, 22-26 X 11-14 [x. 



On trees, Florida. 



2. Anaptychia Ravenelii (Tuck.) Zahlbr., Cat. Lich. Univ. 7:737. 1931. 

 Physcia Ravenelii Tuck., Syn. N. A. Lich. 1:68,69. 1882. 



Thallus adnate, greenish gray, smooth, the lobes short, rather wide, more or 

 less branched, the margins minutely notched and sorediate; apothecia middle- 

 sized, 1.5-3 mm. across, the disk concave to flat, brownish black, the exciple crenate, 

 soon powdery; spores 20-26 X 1 1—16 ft. 



On trees, South Carolina, Louisiana, and Texas. 



3. Anaptychia granulifera (Ach.) Mass., Mem. Lich. 41. 1853. 



Parmelia granulifera Ach., Syn. Meth. Lich. 212. 1814. Physcia granulifera 

 (Ach.) Tuck. 



Thallus adnate, greenish gray to whitish, pruinose at least at the margins, 

 bearing numerous white soredia, the lobes flat, usually wider than long, the margins 

 toothed-crenate; pale below with black rhizoids; apothecia small to middle-sized, 

 2-4.5 mm. across, the disk concave, brown, the exciple inflexed and crenate; spores 

 14-21 X 7.5-10.5 /x, or surpassing these measurements. 



On trees, Pennsylvania, Maryland, and Illinois. 



4. Anaptychia speciosa (Wulf.) Mass., Mem. Lich. 36. f. 32. 1853. 



Lichen speciosus Wulf., in Jacq., Coll. Bot. 3:119. 1789. Physcia speciosa var. 

 galactophylla Tuck. Physcia speciosa (Wulf.) Nyl. 



Thallus large, adnate, greenish gray to ashy, the lobes rather narrow, becoming 

 elongated, much branched, the more or less ascending margins entire to crenulate, 

 and usually more or less sorediate; whitish below with fibrils of the same color; 

 apothecia small to middle-sized, 2-7 mm. across, subsessile, the disk usually deeply 



