702 NEW SOUTH WALES FUNGI, 



crack, and the contents partially or almost entirely break up into 

 l^lack, firm, variously sized and shaped sclerotioid bodies which are 

 squeezed out. The sclerotioid bodies are usually elongated with 

 irregular outlines, and when crushed are seen to consist of a dense 

 mass of brown or j^ellowish-brown septate, intertwisted hyph?e, 

 averaging 5^;;^ in thickness, but varying from 4-7^ fx. 



On bark of Aviceimia officinalis, L. February. Ballina. 

 (Baker, 7). 



The conidiophores were recognised as resembling Botrytis 

 argillacea, Cooke, figured in Grev. iii. PL 48, fig. 6, but the 

 tubercles were rather puzzling. However, on sending a specimen 

 to Professor Saccardo, he kindly replied as follows : — " I have 

 examined your fungus on the bark of Avicennia. The stroma is 

 formed hy a' II i/poxylon, perhaps allied to II. purpureum, of which 

 the conidial stage is the argillaceous Mucedine. Already Albert! 

 and Schweinitz had a knowledge of this Hyphomycete {Dematiuvi 

 virescens). Your species approaches Botrytis argillacea, Cooke, 

 only the principal hypha? of your species seem to be shorter. It 

 would be necessary to know the species of Hypoxylon borne by 

 Avicennia, but on the whole it might be made provisionally a 

 variety of Botrytis argillacea." Accordingly I have given it the 

 varietal name of Avicenniae. 



EXPLANATION OF PLATES. 

 Plate XXVI. 

 Funariiim hyssinum. 



Fig. \. — Unclei' surface of large leaflet with bright orange-yellow pustules 

 (nat. size). 



Fig. 2.— Conidia ( x 1000). 



Asttridium eucalypti. 



Fig. 3. — Portion of hypha with stout, uniseptate, ultimate branchlets 

 ( X 540). 



Fig. 4. — Immature and mature sporidia, the latter witii the characteristic 

 swollen segment. 



