Puccinia Ficoideae. 173 



On living leaves of Zornia diphylla Pers. 



New South Wales Richmond River, May, 1904 (Musson). 



Uredozorniae Berk., is mentioned by Cooke in Grev. XX., p. 110, as on 

 Zornia in Mauritius, but no diagnosis is given. This is the first record of 

 the teleuto stage, since Dietel in his Uredineae brasilienses only men- 

 tions the uredo stage on the same plant from Rio Janiero, and thus describes 

 it: "Sori hypophyllous, scattered, surrounded by the ruptured ochraceous 

 epidermis, minute, brown. Uredospores globose, obovate or ellipsoid, 

 21-28 x 18-23 n epispore brown, echinulate, with three germ-pores." 



Darluca Jilum Cast., occasionally on sori. 



(Plate X., Fig. 87.) 



FICOIDGAE. 



Tetragonia, 



104. Puccinia tetragoniae McAlp. 



McAlpine, Agr. Gaz. N.S.W. VI., p. 854 (1895). 

 Sydow, Mon. Ured. I., p. 563 (1903), p. 895 (1904). 

 Sacc. Syll. XIV., p. 295 (1899). 



0. Spermogonia orange, numerous, aggregated, amphigenous, 150-170 /j. 



in diam. 



Spermatia hyaline, globose to oval, 2J-3-J- ft diam. 



1. Aecidia hypophyllous, crowded, often arranged in lines, greenish to 



yellowish-brown knob-like swellings before bursting ; pseudoperidia 

 white, cylindrical, with torn edges, average 630 ^ diam. 



Aecidiospores orange-yellow, minutely warted, variously shaped, 

 globose to ovate or mussel-shaped, 27-39 x 22-25 /.t. 



II. Uredosori amphigenous, soon naked, bullate, orange-red, generally 



orbicular, 1-1^ mm. diam. 



Uredospores orange-yellow, ellipsoid to ovoid, strongly echinu- 

 late, 27-37 x 22-25 /w, average 31 x 24 p. 



III. Teleutosori amphigenous, black, compact, bullate, orbicular, irre- 

 gular or elongated, scattered, covered by epidermis for some time, 

 then erumpent. 



Teleutospores golden brown to chestnut-brown, elliptical to 

 oblong, usually rounded at both ends, slightly constricted at 

 septum, smooth, 40-60 x 25-36 jw, average 50 x 30 ju ; pedicel 

 hyaline, stout, persistent, up to 80 ^ long. 



X. Mesospores similarly coloured to teleutospores, ellipsoid or elongated, 

 thickened at apex, 35-54 x 25-29 ju. 



On leaves and stems of Tetragonia implexicoma Hook. f. 



Victoria. On the coast at Sandringham, Beaumaris, Flinders, 



Portland, &c., all the year round. 



Tasmania Hobart, about rocks, Aug., 1897, I., II., III. (Rod- 

 way 1 ). 



All the stages are usually very plentiful in the month of August. 

 The spermogonia precede or accompany the aecidia on upper and under 

 surface of the leaves, are flask-shaped and the neck projects slightly between 

 the watery vesicles which stud the surface of the leaf. They often form 



