LICHENS OF SANTA CRUZ PENINSULA 39I 



flated, their tips usually subulate. Apothecia numerous, very 

 small, clustered, dark brown. 



On earth on damp hillsides. 



Not rare in the foothills at moderate elevations. 

 Lichen sqnamostis Scopoli, Flora Carniolica ed. 2. 2 : 368. 



1772. 

 Cladonia squamosa Hoffm. Deutsch. Fl. 2 : 125. 1795. 



8. CLADONIA FURCATA RACEMOSA (Hoffm.) 



Floerke. 

 Primary thallus at first of tiny scattered squamules, these 

 eventually quite long, leafy, lobed, with crenate-lobulate 

 margin ; pale green. Podetia fruticose, very slender, elon- 

 gated ; branches spreading, curved, intricately divided ; surface 

 smooth, becoming more or less roughened or thickly clothed 

 with squamules or thalline lobules ; axils of branches often gap- 

 ing ; tips of branches very slender and subulate, or thickened 

 and stumpy. Color varying from a very pale greenish gray to 

 brown. Apothecia numerous, very small, pale to dark brown. 

 On earth in the foothills ; not rare. My best specimens are 

 from Pilarcitos Creek Canon, two miles from the Pacific, at an 

 altitude of 200-300 feet. 



Cladonia racemosa Hoffm. Deutsch. Fl. 2 : 144. 1795. 

 Cladonia Jiircaia racemosa Floerke, Clad. Comm. 152. 1828. 



9. CLADONIA MACILENTA (Hoffm.) Nylander. 

 Primary thallus minute to small, squamulose or leafy, scanty, 



crenate-lobate ; pale gray-green to brownish; white beneath. 

 Podetia cylindrical, slender or sometimes swollen, simple, or 

 with few and irregular branches ; occasionally dilated at the 

 summit and forming cups, these marginally proliferous with 

 (usually) fertile branchlets ; covered by a pale gray-green pow- 

 der or by granules, these becoming squamules and on the lower 

 half finally leafy lobules, similar in form and color to those of 

 the primary thallus ; the white ground color usually but little 

 evident ; specimens occasionally occur in which the powder or 

 granules are not present. Apothecia scarlet, turning black 

 when wet; small to medium, irregular, more or less confluent; 

 terminal. 



