52 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 



Additions to the Lichen-flora of Southern 

 California,. 



BY DR. H. E. HASSE. 



For the very accurate descriptions of the new species 

 discovered since 1898, in our territory, Lichenologists of 

 North America are indebted to Dr. A. Zahlbruckner, of the 

 Eoyal Botanical Museum, of Vienna, and the writer also desires 

 herewith to convey his tribute of appreciation to this conscien- 

 tious naturalist. Without the detailed diagnoses of Dr. Zahl- 

 bruckner, the new material enumerated would be of but 

 insignificant value to science. 



Pyrenopsis phaeococca, Tuck. Sandstone boulders in Santa 

 Monica Range, forming dull greenish-black 

 patches. 

 " homoeopsis, Nyl. (Crombie, Br. Li. I. 25.) Argil- 



laceous rocks, SMR. 

 Collema crispum, Borr. (Tuck. Syn. N. A. Li.— Crombie, 1. c.) 

 Gravelly and sandy soil, Mill Creek Canon, San Ber- 

 nardino Mts. 

 " nigrescens leucopipta. Tuck. On a decayed stump, 



SMR. 

 " cheleum, Ach., forma monocarpum, Nyl. (Cr. 1. c.) A 



microphylline state, on sandstone, SMR. 

 " verruciforme, Nyl. On bark, Yosemite Valley. Al- 

 though extra limited, a few interesting collections 

 from that locality are included. 

 Collemodium Schraderi, Nyl. Earth on rocks, San Gabriel 

 Range; slate rocks, SMR; Santa Barbara. 

 I.e.) On earth, SMR. 

 Leptogium lacerum, Gray. Subsp, L. pulvinatum, Nyl. (Or. 

 " minutissimum, (Floerk, Schaer.) Mass. Spores 



" 1. c.) on earth. 



are 3-7 septate with some longitudinal septa and 

 variable in size and shape. Earth, SMR. 

 " muscicola, Pr. (Cr. I.e.) Rocks among moss, 



Yosemite Valley. 

 " rhyparodes, Nyl. (Cr. I.e.) Rocks and stones, 



SMR. 

 Trachylia (Acolium) chloroconium. Tuck. Bark of Pseudo- 

 tsuga, Yosemite Valley. 

 Yosemite Valley. 

 Sphinctrina microcephala, Nyl. Bark of dead oak, San Gabriel 



Range, 

 Stenocybe tremulicola, Norrl. (Bull. Torr. Bot. CI.— Hue Add. 

 Nov. Li. Europ. 1886, No. 140.) Distributed as S. bys- 

 sacea, a sub-species. On Juglans californica, S. M. R. 

 Rocella fuciformis, (L.) Ach. Catalina Island. (Trask.) 



