BY D. McALPINE. 559 



echinulate, golden-brown, with at least 5 germ-pores irregularly 

 distributed, 21-24 /x diam., or 25-28 x 21-24 fi. 



iii. Teleutosori minute, elliptical, numerous, black, often con- 

 fluent lengthwise, soon naked. Teleutospores intermixed with 

 uredospores, dark chestnut-brown, oblong, constricted at septum, 

 with rounded and thickened apex, smooth, 33-48 x 18-24 /z; upper 

 cell generally hemispherical, and about equal in length to lower; 

 lower cell generally rounded at base, sometimes narrow and 

 elongated like upper portion of pedicel; pedicel persistent, tinted> 

 elongated, up to 72 /u long. 



Hampton, Victoria; on Stipa Jlavescens, LabilL; Jan., 1903. 



The pulverulent uredosori, and the numerous minute, black 

 teleutosori are characteristic of this species. The uredospores form 

 a rusty powder over entire upper surface of leaf. The pedicel of 

 the teleutospore is sometimes lateral and the septum erect as in 

 Diorchidium. It differs from P. atipce, Arthur, in the uredosori 

 being soon naked and decidedly ruddy-brown, not yellowish, 

 while the uredospores are broader. 



In specimens of P. stipce, (Op.) Hora, taken from Syd. Ured. 

 Exs. No. 28, on Stipa capillata, L., the teleutospores are decidedly 

 different. The apex is generally bluntly pointed, and the size 

 48-54 X 18-21 /x. In specimens of P. stijxe, Arth., from Arthur 

 and Holway's Ured. Exs. No. 27, on Stipa sjjartea, Trin., the 

 teleutospores are more pointed at the apex and rather thicker. 



I have submitted specimens to Prof. J. 0. Arthur, and he 

 remarks that it is clearly distinct from his species, although there 

 is very much similarity between the two, as one might expect, 

 from the hosts being essentially alike. 



54. Rhabdospoka LOBELiiE, n.sp. 



Perithecia black, punctiform, gregarious, erumpent, on greyish 

 epidermis, globose, dark brown by transmitted light; membrana- 

 ceous, rather firm, with papillate mouth, 1 60-200 /u diam. Sporules 

 numerous, hyaline, filiform, straight or slightly curved, rounded 

 at both ends, or rather acute, 1-or more guttulate, with granular 



