122 FUNGI FROM KERGUELEN ISLAND, 



2. Penicillium glaucum, Link, also occurs on the same piece 

 of wood, at first forming a dense white stratum, then its sage- 

 green conidia. 



3. Intermixed with the Aspergillus are salmon-pink patches 

 found to be due to a species of Fusarium. 



FUSARIUM RHODELLUM, n.Sp. 



(Plate XIII., fig. 7.) 



Forming an efi'used, salmon-pink, flocculent layer. Hyphse 

 hyaline, septate, branched, slender, densely interwoven, about 4 jj. 

 broad and conidiophores only 2 fj.. Conidia at tips of branches, 

 hyaline, slightly curved and pointed at both ends, sometimes 

 straight and fusiform, uni-septate when fully developed, 11-13 x 2/x, 

 but may be only 7^-9^ fj. long when aseptate. Stained very pale 

 yellow by Potassium-iodide-iodine. 



It differs from F. brassicce, Thuem., in the absence of wart-like 

 brown sporodochia and the conidia not being bi-septate; from 

 F. roseum, Link, in the conidia not being 3-septate, 



4. A sooty-black mould was also developed on the same piece 

 of wood among the others. 



Alternaria tenuis, Nees. 



(Plate XIII., fig. 8.) 



Hyphas pale fuliginous, short, septate, branched, average 4 /x 

 broad. Conidia in chains, dark brown to dark olive, elongated, 

 clavate, up to 6-septate and sparingly longitudinally septate, 

 constricted at septa, some Helminthospoi'ium-like, 24-37 x 9-11 ix. 



It differs from A. brassicce, Sacc, in the hyphas being narrow 

 and multi-septate and the conidia less than half the size. The 

 conidia were sometimes firmly attached in chains, and three 

 might frequently be seen tossing about in a current under the 

 microscope without separating. 



On leaf of Pringlea anfiscorbutica. Black-looking spots with 

 slightly raised margins, round to oval, and marked with con- 

 centric zones, up to ^ inch diam. 



