176 



Puccinia Chenopodiaceae. 



There were spots on the upper surface of the leaves with purplish-red 

 margins, but these were due to gall-mites. The spores are of the general type 

 of P. rumicis-scutati, but both kinds are somewhat smaller. I had a large 

 amount of material to operate upon, and found the sori to be hypophyllous, 

 although Cooke inadvertently describes them as epiphyllous. In a specimen 

 of P. rumicis-scutati, from Syd. Ured. Exs. 25, the teleutospores are of a deep 

 chestnut-brown, and attain a length of 57 p. Sydow himself had not seen 

 any specimens of the rust on JIuehlenbeckia, but even from the brief 

 description of Cooke he was right in making a species of it. 



Darluca filum Cast., sometimes common on uredosori. 



(Plate XI., Fig. 93.) 



CHENOPODIACEAE. 



Threlkeldia. 



107. Puccinia dielsiana P. Henn. 



Hennings, Hedw. XL., p. (95) (1901). 



Sydow, Mon. Ured. L, p. 566 (1902). 



Sacc. Syll. XVII., p. 361 (1905). 



III. Teleutosori on stems, large, compact, bullate, erumpent, up to J cm. 

 long. 



Teleutospores ellipsoid or oblong ellipsoid, generally rounded at 

 both ends or obtuse and slightly thickened at apex (3-5 ^u), smooth, 

 very slightly constricted at septum, with granular contents, 

 chestnut or dark-brown, 35-18 x 18-28, average 38 x 22 p ; 

 pedicel sub-hyaline, persistent, 80-120 x 5-6 /.t. 



X. Mesospores occasional, ellipsoid to ovoid, coloured and thickened at 

 apex like teleutospores, 34 x 23 p. 



On steins of Chenopodiaceae Threlkeldia drupata Diels. 



W. Australia Near Perth, 1900. 



The teleutospore has occasionally a vertical septum, and in elongated 

 slender specimens the breadth is reduced to 18 p. 



(Plate XI.-, Fig. 94.) 



Kochia, Enchylaena. 



108. Puccinia kochiae Mass. 



Massee, Grev. XXII., p. 17 (1893). 



Sydow, Mon. Ured. I., p. 565 (1903). 



Sacc. Syll. XL, p. 196 (1895). 



II., III. Sori amphigenous, discoid, plane, very compact, blackish- 

 brown to black, often aggregated together, girt by the ruptured 

 epidermis, up to 1 mm. diam. 



II. Uredospores elliptical, golden-brown, decidedly echinulate, with 



numerous prominent germ-pores, as many as twelve on one face, 

 29-34 x 18-25 /z, 32 x 23 p. being very common. 



III. Teleutospores densely packed, intermixed with uredospores, 

 elliptic-oblong, rounded at both ends, or the apex with a slight 

 indication of a papilla which is often oblique, perfectly smooth, 

 chestnut-brown, hardly constricted at septum, epispore about 3 /t 

 thick, 35-45 x 22-29 ^ average 37 x 25 p ; pedicel tinted 

 yellowish, persistent, 30-40 x 6 /*, but may reach a length of 96 ju. 



X. Mesospores few, similarly coloured to teleutospores, oval to flattened 

 at apex, 28-35 x 22-25 p. 



