
r. 
2 
_ sviis congestis-innatis difformibus plano-convexis, disco 
fusco albo-pruinoso, margine thallino tenui integro 
_ demisso l. subevanido. Spore in thecis confertis ven- 
__tricosis ocione, subdactyloidece, 5-6 blast, diam. 2-3} 
plo langiores, incolores. Spermatia acicularia, arcu- 
_ ala, sterigmatibus simplicibus infixa. On Quercus ag- 
rifolia, the ‘patches giving it a whitish appearance,’ 
Monterey ; Mr. Bolander. With the aspect of a com- 
mon state of Z. glaucoma, and really closely resem- 
bling it. Speresalways straight. Paraphyses scarce- 
ly distinguishable. Spermatia agreeing with those 
of the group represented by Z. subfusca. 
L. uthroocarpa, Dab., Nyl. San Diego; Dr. Cooper. 
Rocky Mountains; Dr. Hayden. 
L. punicea, Ach. Valley of Rio Grande; Mr. Wright. 
L.cinerea, (L.)Sommerf. Coast; Mr.Bolander. Rocky 
Mountains ; Dr. Parry. 
L. peliseypha (Wahl.) Coast; Mr. Bolander. 
L. chlorophana Wahl.) Ach. Southern ranges of Rocky 
Mountains ; Mr. Wright. 
L. Schieicheri (Ach.) Ny]. Rocky Mountains; Mr. 
Hall. | 
L. zanthophana, Nyl. (L. chrysops, Tuck.) Coast ; 
Mr. Bolander. 
Rrnoptwa oreina (Ach.) Massal. Rocky Mountains; 
Dr. Hayden. 
R. sophodes (Ach.) a, & ff. Coast; Mr. Bolander. 
Rixopina sabulosa (sp. nova) thallo tenui dein eontiquo 
tnequabili viridi-glaucescente ; apotheciis minutis ses- 
silibus, disco plano-convero fusco-nigro marginato, 
margine thallino persistente subintegro. Spore. octone, 
mediocres, ellipsoidece, tetrablastee demum submuriformi- 
pleioblastez, diam. 2-34 plo longiores, fuscescentes. On 
