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ADDITIONS TO THE LICHEN=FLORA OF SOUTHERN CALIFORNIA 
H. E. Hasse. 
In this, as in a former paper (The Bryologist, Nov. 1909), a terminology 
for the apothecial structures is adopted that has been proposed by Dr. O. V. 
Darbishire, now of Armstrong College, Newcastle-on-Tyne, England. (See 
Berichte d. Deutsch. Botan. Gesellschaft, 1898, XVI, Plate i, and also Engler 
& Prantl, 1907, p. 41, Allgem. Theil by M. Fuenfstueck. ) These terms 
vary but little from those in use, combining the differing terms of various 
authors used for the same structures, also possessing the merit of simplicity 
and of being clearly designative. They are: 
Epithechmi, the layer covering the disk. 
Thecium, the structure consisting of the paraphyses and the spore- sacs. 
Hypothecium, the layer on which the thecium rests, 
Parathecium, the vertical, latteral continuation of the hypothecium, and 
forming a cup holding the epithecium and thecium. 
Proper margm, is the rim of the cup, encircling the epithecium. 
Thallme margin, that part, when present, of the thallus encircling the 
parathecium. 
A)nphithecium, the immediate continuation outward of the thalline 
margin, containing the gonidia and clothed by the cortex. The deeper 
structure continuing under the hypothecium is the Medulla. 
Parhelia multisporum Schneider, Guide, 1898, p. iS4.=Parmelia olivacea 
var. 77iultisporuf?i'M.evv\\\, Bryologist, July, 1909. 
The range of this lichen can now be extended south to the San 
Bernardino mountains, California. To the excellent description given by 
Mr. G. K. Merrill, I beg to add: — epithecium continuous, brown gradually 
paling downward; thecium colorless, 6o/^ to 64/4 high, staining blue with 
iodine except the epithecium, which retains its natural color; paraphyses 
coherent; hypothecium colorless; asci inflated clavate ; spores 16 to 24 in 
asci, ovoid, 8/4 to 9/4 long, 5/4 to 8/4 thick, or globular and 5/4 to 8/4 thick, the 
differing forms about equal in number. Not more than twenty-four spores 
were seen in specimens examined, 
• Aside from the smaller size of the thallus, it is externally quite 
similar to Parmelia olivacea (L.) Nyl. the marked feature of the spore 
character, however, seems to entitle it to the species rank of its author. 
The writer has seen it from the Santa Cruz mountains (A. C. Herre), 
San Bernardino mountains (S. B. Parish), and has collected it in the 
