292 



Ramalina calicaria farinacea Schaer. No. 288 isa very broad state, qniteimlike the 

 narrower plant of the Eastern States. Vicinity of San Diego, California, De- 

 cember, 1888 (Xos. 283, 288). 

 Ramalina poUinaria Ach. San Diego, California, and vicinity, 1888 (Nob. 276a, 



27m), 281). 

 Ramalina crinita Tnckcrm. On bnshes 5 to 10 era. high. Harbor of San Diego, 



California, Se]iteiiibor, 1888 (Xo 2(i8c). 

 Cetraria saeplncola chlorophylla Wahl. A well marked but pale form. Harbor of 



San Diego, California, December 16, 1888 (No. 286). 

 Usnea barbata florida Fr. Mexico, 1890 (?) (No. 3.34a). 

 Usnea barbata rubieiuea Jlx. San Diego, California, and vicinity, September to 



December, 1888 (Nos. 202, 27(Ja, 282, 2i!(j). 

 Usnea longissima Ach. Hanging in long, slender clusters from trees. Used by the 

 natives as medicine for the blood. Purchased iu the market at Colima, Mexico, 

 .January and February, 1801 (No. 1403). 

 Alectoria canariensis (Ach.) Mont. San Diego, California, 1888 (No. 208). 

 Schizopelte californica Th. Fr. A rare species. Growing in great confusion on 

 the face of ex])osed rocks on the northeast coast of the largest of the Coronados 

 IsLiuds, 32 kilometers south of San Diego, California, August 18, 1888 (No. 

 260i>). 



Theloschistes flavicana (Sw.) DC. San Diego, California, 1888 (No. 200). 



Theloschistes parietinus (L.) Norm. San Diego, California, 1888 (Nos. 289, 295). 



Theloschistes polycarpus Ehrh. Near Roseville, 3 or 4 kilometers west of San 

 Diego, California, 1888 (No. 269a) ; Gaudalupe Islands, under overhanging rocks, 

 March, 1889 (No. 904). 



Thelo.3chistes ramulosus Tuckerm. Harbor of San Diego, California, September, 

 1888 (Xo. 2«;8d). 



Parmelia perforata (Jacq.) Ach. Mexico. 



Parmelia perforata (Jacq.) Ach. Forma hypotropa Nyl. In a deep ravine in the 

 viciiiity of San Diego, California, September, 1888 (Nos. 276f, 279). 



Parmelia camtschadalis (Ach.) Esclnv. Mexico (?). 



Parmelia caperata (L.) Ach. Mexico (?). 



Parmelia conspersa (Ehrli.) Ach. On rocks and earthbanks, 11 kilometers south- 

 west of San Diego, California, September, 1888 (Nos. 275c, 291). 



Physcia leucomela (L.) Mx. Tepic, Mexico, January 10, 1892. 



Physcia hispida (Schreb. Fr.) Tuck. On dead and decaying plants of Euphorbia 

 tnheru, Koseville, California, September, 1888 (No. 270a); on low bushes at 

 False Bay, California, September, 1888 (No. 276i)j Harbor of :^an Diego, Cali- 

 fornia, December, 1888 (Nos, 285, 206, 212). 



Lecanora pallida cancriformis Tuck. Mexico, July 12, 1890 (No. 1989b), 



Lecauora cenisia Ach. Harbor of San Diego, California, December 6, 1888 (No. 

 275x), 



Pertusaria flavicunda Tuckerm. Point Como light-house, California, December 

 15, 1888 (No. 290), 



Pertusaria wulfenii DC. South end of Guadalupe Island, March 29 and 30, 1889 

 (No. 903). 



Urceolaria scruposa (L.) Nyl. Harbor of San Diego, California, December 6, 

 1888 (Xo. 275b). 



Cladonia pyxidata (L.) Fr. East side of False Bay, near San Diego, California, 

 September, 1888 (No. 275d). 



Cladonia fimbriata (L.) Fr. California (No. 19c), 



Cladonia rangifernia (L.) Hoifni. Mexico. 



Buellia oidalea Tuckerm. One specimen (No. 213) well represents the muriform 

 type of the spore, which is characteristic of the species. San Diego, California, 

 1888 (Nos. 213, 276b, 277f). 



