628 Transactions. 
cell-contents granular; pedicel decidous, hyaline, up to 50 x 10 mmm. ; 
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Host: Microtis porrifolia R. Br. On leaves anes ЖОЕ; Herb. No. 331. 
П, ПІ. Tiritea, Palmerston North Казав), 6 à C. 3 Mar., 1921. 
I, II, III. Hills near Petone (Wellington), E. H. p EN 20 Dec., 1921. 
Distribution : Australia. 
The host is indigenous; it occurs also in Australia. The aecidia have 
not been recorded previously; they closely resemble those of Uromyces 
Thelymitrae. The latter species is distinguished by the larger, less warted, 
and less acuminate teleutospore. 
4. Uromyces Thelymitrae McAlpine. (Fig. 9.) 
MeAlp., Rusts Aus., p. 90, 1906. 
0. Spermogones amphigenous, associated with the aecidia, scattered, 
minute, erumpent, honey-coloured. 
I. Aecidia amphigenous, scattered, minute, 100—120 mmm. diam., 
orange. Peridia cupulate, margins pallid yellow, revolute, dentate. Spores 
polygonal, 17-22 mmm. diam. ; spapore ] mmm. thick, finely and densely 
verruculose, cell-contents orange-ye. 
П. Uredosori ‘amphigenous, eliptical ayk or aggregated into 
irregular groups, seldom confluent, up to 2 long, bullate, chocolate- 
brown, pulverulent, becoming казаг by the epidermis rupturing longi- 
tudinally. dde subglobose, elliptical, or obovate, 25-30 x 16-21 mmm. 
epispore 2 mmm thick. closely and delicately echinulate, pallid yellow, 
apex ps acuminate, thickened u to 7 mmm., С with a con- 
spicuous hyaline apiculus, base attenuate ; epis 3-4 mmm. thick, 
irregularly knobbed or angled, chestnut-brown, отанын coarsely 
granular ; pedicel decidous, hyaline, up to 60 x 12 ; germ-pore 
apical, conspicuous. 
Fie. 6.— os IO EUN Dactylidis а Uredo- and teleuto - spores from Dactylis 
g — paraphyses. 
Fie. 7.—Uromyces vien sp. tn pa ERE from Poa caespitosa Spreng. 
Fie. 8.—Uromyces еони Ске. Uredo- and teleuto-spores from Microtis porri- 
folia R. 
Fie. уле» Thelymitrae McAlp.  Teleutospores from Thelymitra longifolia 
Fie. 10.— боса гамы Fel. Uredo- and teleuto -spores from Polygonum 
re 
Fic. 11.—Uromyces Betae Lev. Uredo- and teleuto-s res from Beta 
Fic. 12.—Uromyces Fabae de Bary. Uredo- and ыы: -spores from Vista Faba нан Я 
т. 13. latus Schroet. o- and teleuto- и s from Medicago sativa L. 
Fig. 14a.—Uromyces. Trifolii Lev. Uredo- and teleu -spores from Trifolium 
pratense L. Nos. 4 and 5 have two germ- ee 
Fra. 145. Отто ане te aad ie Aecidio-, WM. and teleuto - spores 
m hybridu Aeo. = aeoidiospores. 
Ето. 15.—Uromyces Discariae sp. aov: аты foi DIU ria toumatow Raoul. 
Fig. 1 omyces puccinioides Berk. et Е. v. М, Uredo- and teleuto-spores from 
Camera-lucida diii by author. All x 500. 
