1916] Gilkey: A Revision of the Tuheralcs of California 295 



Ascocarp briglit orange, 1-3 cm. in diani., somewhat compressed, 

 even, with Uirge, round opening at ajx'x; mycelial tuft at base: surface 

 divided into somewhat elongated polygons 1.5-3 mm. in length, form- 

 ing bases of low pyramidal verrucosities, each separated into several 

 parts by fissures extending from apex to near periphery ; venae ex- 

 ternae originating at various points of interior of aseocarj), and con- 

 verging at apical mouth; cortical tissue pseudoparenchymatous 

 through verrucosities of surface ; subcortex mostly hyphal but partly 

 pseudoparenchymatous ; venae internae large, little-branched, orig- 

 inating from subcortex and likewise botli hyplial and pseudoparen- 

 chymatous ; asci narrowly club-shaped to very broad, 32-36 by 60- 

 160/x ; spores generally irregularly arranged, rarely 1- or 2-seriate, 

 globose 18-22|U, ; sculpturing somewhat variable, generally consisting of 

 minute, low, comparatively broad, truncate ])apilla(\ thickened at tips; 

 occasional spore witli projections more or less needle-like ; paraphyses 

 8-13/i, thick, rounded and somewhat swollen at end, usually extending 

 be.yond asci. 



"Beneath Sequoias, Mill Valley, Marin Co., Calif., July." 



No. 253, Hk. Col. Type of P. carneus. 

 "Under Arctostaphylos, Calistoga, Napa Co., Calif., April." 



No. 151, Hk. Col. Referred to Choiromyces gangliformis. 

 "U. C. Campus, Berkeley, Calif., Jan. 7, 1905." ''VwAev Arhutus 

 Menziesii, Mill Valley, Calif., Mar. 8, 1905." "Under Quercus 

 agrifolia, Wild Cat Canyon, Berkeley, Calif., Apr. 1, 1905." "Un- 

 der Quercus agrifolia. Berkeley, Calif., Apr. 29, 1905." "Under 

 Quercus agrifolia, Berkeley, Calif., May 11, 1905." 



No. 251, U. C. Col. N. L. Gardner. 



This species is referred with some doubt to PacJiyphloeus citrinus, 

 for while in general it corresponds with the descriptions of the latter, 

 even to the peculiar sculpturing of the spore, there are several points 

 with which it does not agree. Our plants reach a larger size than that 

 cited for P. citrinus, and while the European species is described as 

 dark brown witli yellow papillae, ours is a bright orange-color over 

 the entire surface. However, Fischer, who compared a specimen of 

 oui's with the type of P. citri)tus, pronounced tlic t\»-o identical (Letter 

 of October 6, 1905). 



In the different specimens of the considerable collection of these 

 plants in the University of Calif oi'uia lierbarium. little variation is 

 found ill characters. Both specimens in the Harkness collection, how'- 

 ever, i.e., Nos. 253 and 151, exliibit in cross-section decided lateral 

 compression of the cortical cells, which is not present in the former 

 specimens. No. 151 is immature, with the spores not (piite fully de- 

 veloped, and ])otli of the Harkness plants seem somewhat more deli- 

 cate in strueturc than thos(^ of the Univcrsitv of California collection. 



