BY JOHN SHIRLEY, B.SC. 135 



Tbibe XIII.— GRAPHIDEiE, 3Iull. Arg. 

 Grapliina (Aulacograpliina) tenuirima, Shirley, sp. nov. 

 Tliallus albido-cinereous, opaque, even but not smooth ; lirellte 

 numerous, crowded, straight or flexuous or curved, simple or 

 pauciramose, 1-2 mm. long, sulcate, terminations acuminate, 

 lips gaping, disk nude, rimiform, black ; spores 5-septate, each 

 loculus with 1-3 locelli, -027 x -01 mm., ovate oblong or 

 pupseform, hyaline ; paraphyses short, slender, readily sepa- 

 rating, of globular cellules, n. 388. 



