BY JOHN SHIRLEY, B SC 



37 



often joined in a moniliform manner ; rhizina? not fasciculate. 

 Apothecia fusco -rufous or rufo-testaceous ; hym. gel. with iodine 

 caernlescent. 



L N. laevigatum. Ach (Med. K — ). 



Thallus orbicular, above livid yellow, brick-red, chestnut 

 brown or Jurid-fuscescent, glabrous ; lobed and laciniate, 

 imbricate ; margins sinuate-crenate, somewhat shining ; 

 beneath pale, glabrous, slightly rugulose ; medulla white. 

 Apothecia fusco-rufous ; margin crenulate-unequal, receptacle 

 minutely depresso-granulate ; spores fusiform or narrowly 

 ellipsoid, 3-septate, brown with age, 015 — -022 m.m. by 

 L. *00t m.m. ; paraphyses with dark-brown tips. Sperma- 

 gonia marginal, as minute roundish brown tubercles or teeth, 

 fringing certain thalline lobes, and prominently visible on the 

 pale under surface of the thallus. Sporrnatia in myriads, 

 sub-globose or oval-oblong, '0015 m.m. in diameter. 



Syn. — Peitigera rcsupinata v. laevigata Fr. ; Nephroma 

 resupinatum v. laevigatum Schaer., X. papyracea D.N. 



Bah. — On logs, Maroochie. 



Reported from Queensland in Vic. Nat. Oct. 1887 ; Nephroma 

 tropicum. Mwll. 



Sub-tribe II. — Pcltiriei, Nyl. 



Thallus membranaceous, dull or shining. Granular stratum 

 of gonimia. Apothecia marginal on the upper surface of 

 thallus ; spores colourless or pale fuscous, fusiform. Nyl. 

 Syn. Lie!., p. 322, Vol. I. 



II. — Peltigeka, Ach. 

 Thallus prostrate, dilated, foliaceous, membranaceous, fragile, 

 lobed, upper surface often shining, umler surface spongy with 

 broad veins ; acquiring a brown colour in herbaria, Apothecia 

 suborbicular, affixed to the upper surface of the extremities of 

 elongated or produced lobules of the thallus, at first covered by a 

 very thin thalline membrane or veil, which soon dehisces. Spores 

 fusiform, elongated, pale yellow, usually packed spirally ; para- 

 physes filiform and very delicate ; spermagonia when present on 

 margin of thalWs as obtuse tubercles ; spermatia ovoid, colourless. 



