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HANDBOOK OP 
5. hyfodermeje. 
Flourishing in the parenchyma of living plants. Spores mostly 
pulverulent. 
Section 1. Ustilaginebs. Tul. 
Genus 1. USTILAGO. Pers. 
Vegetative mycelium penetrating the matrix, soon evanescent. 
Spore-bearing mycelium branched, gelatinous, swelling ; spores 
terminal, botryoid on the branches, resolved in maturity into a 
pulverulent or granulose, at length erumpent mass ; sporidiola 
solitary, promycelium usually acrogenous. 
* Spores smooth. 
1701. Ustilago australis. Goolce Grev. Sacc. Syll. 1657. 
Produced within the ovaries ; spores black, subglobose or 
angular and deformed, even, 8-9 p diam. 
On fruit of Eriachne. Victoria. 
1702. Ustilago confusa. Massee.=U. destruens. Berk, in 
Herb. 4744. 
Sori produced in the ovary, soon naked, mass of spores pulve- 
rulent, violet-black ; spores clear brown, with a tinge of violet by 
transmitted light, epispore about 1 p] thick, perfectly smooth, sub- 
globose or irregularly angular, 11-12 p diam. 
On Panicum paradoxum. Victoria. (Fig. 255.) 
1703. Ustilago destruens. Schlecht. Berol. 130. Sacc. 
Syll. 1645. 
Sori black, pulverulent, blackening the flowers and panicles, and 
destroying the ovaries ; spores globose or ellipsoid (9-12 x 8-10 p), 
rarely angular, epispore yellow brown, even or punctulate ; pro- 
mycelium filiform, cylindrical, for the most part triseptate, joints 
anastomosing ; sporidioles lateral, or terminal, oblong elliptic or 
ovoid. 
On Danthonia. Victoria. 
1704. Ustilago Muelleriana. Thum. Myc. Univ. 625. Sacc. 
Syll. 1664. 
Spores irregularly rounded, or with many angles, or quad- 
rangular, or spherical, or subglobose, at length agglomerated, 
brown, epispore even, obsoletely punctulate, 6|-11 p diam. 
On seeds of Juncus planifolius. Victoria. 
1705. Ustilago axicola. Berk. Ann. Nat. Hist. 1852, No. 
55. =U. fimbristylis. Thum. Bull. Torr. Club. 1876 ? 
Sacc. Syll. 1670. 
Forming little dusty, irregular balls, principally on the lower 
spikelets, and in these generally occupying the inferior portion of 
