Puccinia Goodeniaceae. 147 



X. Mesospores very common, oblong or oblong-clavate, thickened at 

 apex, rounded or acute, chestnut-brown, smooth, stalked 23-32 

 X 15-20/1. 



On petioles, calyx and stems of Leschenaultia linarioides DC. 

 West Australia Near Perth, 1900 (Pritzel). 



Aecidia on petioles, flower-stalks, and calyx ; uredo and teleutosori on 

 stems. 



Specimens kindly supplied by Hennings. 



(Plate VI.,Fig. 47.)' 



Goodenia, Velleia. 



* 2. Puccinia saccardoi Ludw. 



Ludwig, Hedw. XXVIII., p. 362 (1889). 

 Cooke, Handb. Austr. Fung., p. 337 (1892). 

 Sydow, Mon. Ured. I., p. 193 (1902). 

 Sacc. Syll. IX., p. 309 (1891). 



P. nigricaulis McAlp., Agr. Gaz. N.S.W. VII., p. 151 (1896). 

 Aecidium goodeniacearum (in part) Berkeley, Linn. Journ. 

 XIIL, p. 173 (1872). 



I. Aecidia on yellowish or brownish spots, scattered or in groups 

 arranged in circular patches (up to 6mm. diam.), amphigenous 

 causing distortion of stem ; pseudoperidia cup-shaped, with white 

 torn, everted edges, 215-325 p, diam. ; isolated peridial cells 

 punctate, with striated margin, generally elongated oblong, or 

 somewhat oval or lozenge-shaped, more than twice as long as 

 broad, 35-42 x 16-21 p. 



Aecidiospores subglobose, polygonal to oval, orange, very finely 

 verrucose, 14-16 p, diam., or 15-17 x 13-14 p. 



III. Teleutosori on both surfaces of leaves and on stems, black, com- 

 pact, roundish or elongated, confluent in loag swollen patches, 

 generally intermixed with or surrounding aecidia, bursting through 

 epidermis. 



Teleutospores clavate to oblong, dark-brown, constricted at 

 septum, smooth, variable in size, rarely 3-celled, 40-66 x 17-25/7, 

 occasionally up to 70 p long, average, 54 x 20 p ; upper cell 

 subglobose or somewhat quadrate, thickened at apex (up to 9 /*), 

 generally rounded or truncate, occasionally pointed, 21-30 x 

 17-25 //, sometimes reaching 32 fj. in length; lower cell generally 

 paler in colour than upper, elongated and tapering towards base, 

 sometimes subglobose, longer and narrower than upper, 17-35 X 

 16-21 /i, occasionally 38 /t long; pedicel usually persistent, 

 hyaline, occasionally pale-yellow, 35-60 x 7-12 //. 



X. Mesospores common, similarly coloured to teleutospores or paler, 

 variously shaped, ellipsoid to oval, or oblong to clavate, smooth, 

 with pointed and thickened apex (up to 9 /u), and generally 

 slightly tapering towards base, 25-49 x 12-21 p, or averaging 

 36 x 17 . 



