102 REPORT ON TWO BOTANICAL COLLECTIONS FROM 



LICHENES. By G. Massee, F.L.S. 



Sph^erophoron compressor Ach. Metb. Licli. (1803), p. 135. 

 On stones. Summit oi' Eoraima, McConnell 8f Quelch, 506. 

 Capo Horn; Chili; W.Indies; Europe; India; Ceylon. 



Cladonia rangiferina, Hoffm. Elor. Germ. (1795), p. 111. 



On the ground. Summit of Eoraima, McConnell 8f Quelch, 507 & 520. 

 Cosmopolitan. 



Parmelia dictyorhiza, Massee, n. sp. Thallus membranaceo-cartilagineus, substellatus, 

 repetito dichotomo-laciniatus, cretaceus, subtus niger, spongiosus. Apothecia 

 ignota. 



Thallus thin, cartilaginous, radiating from a centre in an irregularly stellate manner, 

 repeatedly dichotomously divided, chalk-white above, black and spongy below, the 

 spongy stratum composed entirely of closely septate brown hypha? 11-12 p. thick, 

 arranged in the form of an irregular network. Apothecia unknown. Lacinise about 

 2 mm. wide. 



On the ground. Summit of Eoraima, McConnell 8f Quelch, 53. 



Allied to P. hypotropa, Nyl., but separated from this and every other described species 

 in the reticulate structure of the spongy lower surface of the thallus. 



Parmelia perforata, Ach. Eich. Univers. (1810), p. 110. 



On branches. Summit of Eoraima, McConnell fy Quelch, 503 & 513. 

 Central and N. America ; Central Africa ; Polynesia. 



Alectoria ochroleuca, Nyl. Prod. Lich. (1857), p. 40. 



On branches. Summit of Eoraima, McConnell 8f Quelch, 50f. 

 Mexico ; United States ; Europe ; Himalaya ; Japan ; Australia. 



