THE LICHEN FLORA OF THE SANTA CRUZ PENINSULA 8 1 



elevated; fissured or crowded and sub-imbricate; dull brown-black, 

 the irregular thallus dull black to the naked eye, by which the 

 minute scales are hardly visible; upon a black, fringing hypothallus; 

 KOH -- ;CaCl 2 2 -. 



Apothecia small, innate-sessile or adnate; disk flat, red-black to 

 black, finally becoming convex, and the stout, slightly lighter 

 colored margin then disappearing; epithecium granulose, pale 

 brown; paraphyses strict, coherent; hymenium 44 to 56;* high, blue 

 with I; hypothecium colorless; asci clavate; spores ovoid-ellipsoid, 

 3-5 



t^Ti* 



On sandstone and other rocks at 1000 feet alt., on Mt. San Bruno, 

 also in the foothills and mountains, probably throughout, up to an 

 altitude of 1800 feet. Recorded by Tuckerman from the coast of 

 California and the Dalles of the Columbia, Oregon. 



Often intermingled with the thallus of Rhizocarpon bolanderi 

 (Tuck.), to which it bears a curious resemblance. 



4. LECIDEA GRANULOSA PHYLLLZANS A. Zahlbr. 



Lecidea granulosa Schaer var. phyllizans A. Zahlbr. Beih. Bot. Cen- 



tralbl. 13: 159. 1902. 

 Biatora glebulosa Tuck. Syn. N. Am. Lich. II: 16. 1888, in part. 



Thallus determinate to effuse, often spreading extensively, of 

 wavy, undulate, sub-cartilaginous, rounded squamules, incised or 

 crenate, imbricate, at the circumference becoming radiate and lobate; 

 whitish ash-colored to pale buff; KOH distinct yellow; CaCl 2 O 2 red. 



Apothecia scattered, or grouped, and then becoming conglom- 

 erate, sessile, large, 1.75 mm. wide, from plane to turgid convex; 

 at first with a thin proper margin which is finally excluded; disk dull 

 reddish or yellowish brown, or blackening, papillate, with a faint 

 bloom. In the field the disk is reddish flesh-color. Epithecium 

 granulose, of a sordid yellow-brown color; paraphyses coherent, 

 indistinct; hymenium pale sordid yellowish; hypothecium colorles? 



or nearly so ; asci narrowly clavate ; spores - p\ sterigma simple, 



9-14 



1.2 1.5 



straight; spermatia acicular, - - p. 



7-9 



