£24, SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
Physcia ciliaris, (L.) DC. Sterile on oaks near Strawberry 
Valley. 
Theloschistes lychneus, Nyl. Oak bark. 
Placodium elegans, (Link.) DC. Not found below 275 meters. 
Around Long Valley near base of Tauquitz Peak. 
Placodium ferrugineum, (Huds.) Hepp. form festivum Nyi. 
Crombie J, l.c. pag. 376. Thallus absent. Found at ali 
elevations throughout the state and coast islands. San 
Miguel (Trask). Santa Cruz Mts. (A. C. Herre). 
Placodium vitellinum, (Ehrh.) Naeg. & Hepp. Spores one- 
septate and simple. 
Lecanora rubina, (Vell.) Ach. 
Lecanora rubina opaca, Ach. Both, like Placodium elegans, 
erow at higher elevations and are often found together. 
Lecanora muralis, (Schraeb.) Schaer. 
Lecanora muralis diffracta, Fr. The former at lower elevations, 
while the latter favors higher altitudes. On granite. 
Lecanora subfusca allophana, Ach. 
Lecanora sambuci, Cromb. l.c. p. 443. 
Lecanora varia saepincola, Fr. Dead pinewood. Wide spread. 
San Mateo Co. and foothills near Stanford University. 
(C. F. Baker.) 
Lecanora varia symmicta, Ach. Dead pine wood. 
Lecanora cinerea (li) Somm. Rocks. 
Lecanora cinerea gibbosa, Nyl. Rocks. Spores 28 by 20 mi- 
eromes, spore-contents finely granular with one or two 
nucleoles. 
Lecanora glaucocarpa, (Wahl.) Ach. Granite, Strawberry Val- 
ley. 
Lecanora chlorophana, Ach. Same habitat and locality. 
Rinodina, (Ach.) Mass. Rocks. 
Rinodina sophodes, (Ach.) Nyl. With lecideine Apothecia. On 
oaks at Strawberry Valley. 
Rinodina radiata, Tuck. Granite. 
Urceolaria scruposa (l.) Nyl. On earth and rocks. 
Biatora holopolia, Tuck. Syn. N. A. Li. Il. Spores 8 to 9 mi- 
eromes long, 4 to 41% thick, binuclear. Thecae 40 mi- 
eromes lone, 8 thick. Hymenium 56 mier. high, faintly 
reddish brown; Epithecium red-brown, hypothecium 
colorless. On decorticated dead pine logs, Strawberry Valley. 
Lecidea protabacina, Nyl. On granite. Not under 275 meters 
altitude and at like elevation in San Gabriel Range on 
San Antonio Mt. 
Lecidea enteroleuca, Fr. Tuck. |.c. Il. (li. parasema, Ach. vy: 
elaeochroma Ach. Leighton Li. Gr. Br. ed. 3 p. 269.) 
Sp. blunt elipsoid 16 micromes long, 7 thick. Hypothe- 
eium pale. On pine logs, Strawberry Valley. 
