390 44. PHYSCIACEAE [ 175. Anaptychia 



concave, brown, the exciple subentire to crenulate; spores oblong-ellipsoid, 22-34 X 

 12-15 fi. 



On trees and mossy rocks, throughout northeastern United States, westward to 

 Minnesota, and southward in the mountains. 



5. Anaptychia Wrightii (Tuck.) Zahlbr., Cat. Lich. Univ. 7:743. 1931. 

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



Thallus middle-sized to large, adnate, greenish gray to brown, covered toward 

 the center with minute, wartlike lobules, and smooth toward the margins, the 

 lobes moderately long, more or less branched and imbricated with round to crenate 

 margins; brown below with hyaline rhizoids; apothecia small to large, 1.5-5 mm. 

 across, the disk flat, blackish brown, the exciple thick, colored like the thallus, 

 crenate; spores ellipsoid, 21-25 X 11-15 /t. 



On rocks, Texas and New Mexico. 



6. Anaptychia hypoleuca (Miihlb.) Mass., Atti 1st. Veneto III. 5:249. 1860. 

 Parmelia hypoleuca Miihlb., Cat. Plant. Amer. Sept. 105. 1813. Physcia hypo- 

 leuca (Miihlb.) Tuck. Parmelia speciosa var. hypoleuca (Miihlb.) Ach. 



Thallus middle-sized to large, adnate, greenish gray, the lobes elongated, rather 

 narrow, usually much branched, ascending at the entire margins; usually white 

 and decorticate below with black rhizoids; apothecia middle-sized to large, 4-8 

 mm. across, subpedicellate, the disk deeply concave, brown to brownish black, 

 the exciple crenate to lobulate; spores oblong to ellipsoid, 25-38 X 14-20 /x. 



On trees, eastern United States, and westward to the Rocky Mountains. 



7. Anaptychia aquila (Ach.) Mass., Mem. Lich. 36. f. 31. 1853. 



Lichen aquilus Ach., Lich. Suec. 109. 1798. Physcia aquila (Ach.) Nyl. Physcia 

 aquila var. detonsa (E. Fries) Tuck. Parmelia detonsa E. Fries. Physcia 

 fusca var. detonsa (E. Fries) Burnh. 



Thallus small to middle-sized, closely adnate, smooth, greenish gray to dark 

 brown, rarely bearing coralloid branchlets, the subdichotomously much-branched 

 lobes usually elongated and narrow, often imbricated, those of the center frequently 

 more crowded and narrower, the margins entire to crenate or lobulate; pale below 

 with scattered rhizoids of the same color, or rarely blackening; apothecia small 

 to middle-sized, 1.5-5 mm. across, sessile, the disk concave to convex, brown to 

 brownish black, the thalloid exciple subcrenate to lobulate; spores oblong to 

 ellipsoid, 28-43 X 16-25 /x. 



On trees and rarely on rocks, eastern United States. 



8. Anaptychia erinacea (Ach.) Trevis., Flora 44:52. 1S61. 



Borrea erinacea Ach., Lich. Univ. 499. pi. 9, f. 6. 1810. Physcia erinacea (Ach.) 

 Tuck. 



Thallus small to middle-sized, subfruticose, light greenish gray to whitish, the 

 lobes somewhat elongated, flat, ascending, with entire to torn-wavy margins; white 

 and decorticate below, with long whitish cilia at the margins; apothecia small, 

 0.5-3 mm. across, pedicellate, the disk flat to finally convex, grayish pruinose to 

 blackish brown, the exciple entire, finally covered; spores ellipsoid, 20-25 X 8-12 fi. 



On shrubs, California. 



9. Anaptychia comosa (Eschw.) Mass., Mem. Lich. 39. f. 41. 1853. 

 Parmelia comosa Eschw., in Mart., FI. Bras. 199, 200. 1829. Physcia comosa 



(Eschw.) Nyl. 



Thallus small, fruticose, ascending, light greenish gray to ashy, irregularly much- 

 branched, the end lobes short and dilated upward, the margins and rarely the upper 

 surface bearing light-colored cilia; decorticate and white below; apothecia small 

 to middle-sized or large, 3-8 mm. across, pedicellate, the disk concave, grayish 

 pruinose, the exciple crenate or irregular, usually ciliate; spores oblong-ovoid, 

 25-38 X 15-20 /x. 



On trees, throughout eastern United States westward to Iowa and Arkansas. 



