THE VICTORIAN NATURALIST. 69 



36. Ramalina brevis. Wilson spec. nov. 



Thallus pallido-glaucescent, opaque, applanate, short (to i Y^ in. 

 long and 2 in. broad), lacerato divided, sometimes lacerato com- 

 plicate. Apothecia flavo-pallid, large (to to mm diam ), recep- 

 tacle podicellate, margin more or less incurved. Sometim.es the 

 thallus is wholly covered on one side with apothecia. , The whole 

 appear ance of the typical plant readily distinguishes this species 

 from all others of the genus. 



37. Ramalina unilateralis. Wilson, spec. nov. 



Thallus small (about 8 mm. long), irregularly multifid and 

 entangled (base 2 mm. broad), apices finely divided, curled up 

 and displaying the under surface white, chiefly eroded and 

 sorediate, upper surface sulphureous, cartilaginous, undulate, 

 smooth, nearly shining, K - C - . Apothecia not seen. Habitat 

 on small twigs of Biirsaria spinosa near sea. 



38. Parmelia sub-cceruka. Wilson, spec. nov. 



Thallus bluish-white margined with black line, lobato-laciniate, 

 lobes rotundo-crenate, centre and nearly all upper surface covered 

 with a dark isidium, under surface smooth black, but pale fuscous 

 near margin. Med. K yellow, then very deep blood-red. Apothecia 

 fusco-rufous, small, plane or irregularly concave, thalline margin 

 thin. Habitat on rocks — granite, sandstone, or basalt, 



39. Parmelia albata. Wilson, spec. nov. 



Thallus white, with a slight coerulean tinge, opaque, more or 

 less broadly laciniato-lobate, highly undulate and imbricate, with 

 patches of soredia here and there, especially on undulations. 

 Under surface white, covered with concolorons or blue tomentose 

 rhizinse. Med. K yellow C - . Apothecia not seen. Habitat 

 on mossy rocks. 



40. Parmelia colpodes. Ach. ; var. sphczroidispora, Wilson. 

 Differs from the type as described in Nylander's Syn. Meth. 



only by the sph^eroidal form of the spores, and by their size. 

 Nylander gives "long circa "0025, eras, circa '001 mm." This 

 variety is about '005 mm. long and '004 thick. 



41. Theloschistes velifer. Wilson, spec. nov. 



Thallus minute (half an inch or less), social, yellow or in the 

 sun orange, narrowly everniseform, laciniee convex, beneath white, 

 subcanaliculate, margined by concolorous cilise ; apices lobate, 

 sub-ascending, elongate, much broadened and inflated, the lower 

 cortex and the medulla often absent, exposing the green or yellow 

 gonidia. Apothecia orange-red, moderate, (diam. i to 2 mm.), 

 at lengih sub-cephaloid, stipitate, rising i to 2 m.m. from the base 

 of the apicular lobe. Spores uncoloured, ellipsoid (•oo8-"oi mm. 

 long), placodine. Habitat on bark of trees and bushes near 

 streams and in gardens. It prefers the furcations of the small 

 twigs oi Hymenanthera Bafiksii, and often covers the whole side 

 of a bush. The fruit is rather rare. 



