68 THE VICTORIAN NATURALIST. 



3 in. in height and coming to a sharp point at the apex. 

 Apothecia unknown. Found in company with C. fragillima 

 (Krplhb.), of which it may be a form, as that seems to be alUed 

 to C. ptmgefis. 



34. Phyllis melacai'pa. Wilson, gen. et spec. nov. 



ThaUus minute (2-3 mm. long, -2 broad), cinereous, but green 

 when fresh, white below, laciniato-squamose, convex on both sur- 

 faces, irregularly multifid, the apices of the lower lacinise crenate, 

 divided, recurved, the ultimate lacinse more or less terete. 

 Apothecia cephaloid, black, somewhat smooth and shining, regular 

 and hemispherical or tubercularly difformed (attaining a diameter 

 of fully I mm.), terminal on the lower thalline lacinise, which then 

 form short, finely fistulose podetia. Spores 8, in asco, colourless, 

 simple, ovato-ellipsoid (•oo6-'oo8 mm. long, •oo4--oo5 thick), con- 

 taining often one to three globules. Paraphyses indistinct, fus- 

 cescent, apices fuscous (.oo4--oo5 mm, thick). Gel. hym. blue 

 with iodine. (Spermatia bacillar, inrcassate at one apex ) ? 

 Habitat on tree trunks and decaying logs in sub-alpine localities. 



The squamse of the thallus are generally very closely imbricated, 

 showing scarcely more than the terete apices and the round, black 

 apothecia, half-buried among them. The thallus is composed of 

 laxly-interwoven filaments, both simple and ramose ('002 -"005 

 mm. thick), with gonidia light green, spherical or oblong (•005- 

 •017 mm. diara.), gathered into groups close to the upper surface 

 of the thallus. 



This plant is allied to the Cladonias by the texture and general 

 appearance of the thallus, the cephaloid form of the apothecia, 

 and the form and colour of the spores, but it is separated from 

 that genus by the double convexity of the thallus, becoming at 

 the apices almost cylindrical, together with the colour and situa- 

 tion of the apothecia and the character of the paraphyses ; which 

 compel the formation of a new genus, which I venture to call 

 Phyllis, from the leafy nature of the plant, by which it stands 

 alone among the Cladodei. The distinguishing marks of the new 

 genus are : Thallus squamulose, apothecia black, subterminal, 

 paraphyses indistinct. Its place is between Cladina and Pycno- 

 thelia in Nylander's arrangement. 



35. Pilophoron conglomeratiim. Wilson, spec. nov. 



I'hallus olivaceous — green when fresh — effuse isidioso-granulate; 

 podetia sub-cylindrical, longitudinally costate or lacunose, verru- 

 coso granulate, passim isidiose (-20 mm. high, 1-5 mm. thick), simple 

 or divided into two or four branches at apex. Apothecia fuscous- 

 black, conglomerate ("4 mm. diam.), spores ellipsoideo-fusiform, 

 colourless, simple ("oi mm. long, "003 thick). Hypothecium 

 fuscous. Paraphyses distinct, conglutinated, fuscescent, apices 

 fuscous. Gel. hym, with iodine intensely blue. Habitat on 

 mossy trunks of dead trees in sub-alpine localities. 



