346 Herre 



V. Alectoria (Ach.) Nylander. 

 Thallus pendulous, terete, resembling fine hair; alike on all 

 sides; much and intricately branched, forming tangled mats; 

 color black to dull brown ; medullary layer cottony. 

 Alectoria Ach. Lich. Univ. 592. 1810; in part. 

 Alectoria Nylander, Syn. Meth. Lich. i : 277. i860. 



1. ALECTORIA JUBATA (L.) Tuckerman. 

 Thallus tufted, pendulous, elongated, slender, terete, smooth, 



polished, very much branched and hair-like, forming tangled 

 clumps and mats; small, greenish, powdery, lateral soredia 

 sometimes present ; color black, green-black, or rarely brown- 

 ish black. 



Always sterile with us. 



On trees and shrubs, above 1800 feet. 



This peculiar plant, resembhng mats of fine black hair, is 

 perhaps widely distributed among the Santa Cruz Mountains, 

 but is nowhere really abundant and is readily overlooked. 



Found in greatest quantity on Black Mountain on the Page 

 Mill Road (1800 feet), growing on dwarf Adenostoma within 

 two feet of the ground. A single small specimen on an oak 

 tree near the summit of Black Mountain, altitude 2500 feet. 

 Occurring also along the summit of the range above Saratoga, 

 at an altitude of 2400 feet and above on Pseudotsiiga taxijolia 

 and ^cercus agrifolia. To be looked for throughout on the 

 under side of limbs of Douglas Spruce and oaks, associated 

 with Cetraria lacunosa stenophylla^ Cctraria glatica^ and 

 Usneas. 



At the Pinnacles, San Benito County, a short distance south 

 of the Santa Cruz Peninsula, this lichen is common and rather 

 conspicuous, occurring on Adenostoma. 

 Lichen jiibatus L. Sp. PI. 2: 1155. i753; in part. 

 Alectoria Jubata Tuck. Syn. N. Am. Lich. i : 44. 1882. 



2. ALECTORIA FREMONTII Tuckerman. 



This species has not yet occurred within our territory but 

 should be carefully looked for in the mountains, above 3000 

 feet. It is probable that a search of the larger conifers will 

 reveal its presence. 



