. The rusts of Australia, their structure, nature, and classification . ONGIFOLIA. 284 Explanation of Plates. PLATE XXII. {All Figures X 250 unless otherwise stated.) 185, 186. Uredospores of U. robinsoni on Acacia melanoxylon. The solitary largesmooth-walled spore (?) in Fig. 186 is difficult of interpretation. 187. Young and mature leleutospores of same, with and without attached vesicles. - med.) 188. Mature teleutospores of same, with vesicles. 189. Mature teleutospore of same germinating, the sporidiola just about to be formed. (Stained.) 190. 191, rr)2. Successive stage
. The rusts of Australia, their structure, nature, and classification . ONGIFOLIA. 284 Explanation of Plates. PLATE XXII. {All Figures X 250 unless otherwise stated.) 185, 186. Uredospores of U. robinsoni on Acacia melanoxylon. The solitary largesmooth-walled spore (?) in Fig. 186 is difficult of interpretation. 187. Young and mature leleutospores of same, with and without attached vesicles. - med.) 188. Mature teleutospores of same, with vesicles. 189. Mature teleutospore of same germinating, the sporidiola just about to be formed. (Stained.) 190. 191, rr)2. Successive stages in the development of a teleutospore head of U. tefferianum on Acacia salicina, the striated epispore bein^ clearly shown inu)2. (Stained.) ... ... ,.. ... ... ... x 500 ?93- Single teleutospore of same, seen from above and showing striated markings ... ... ... ... ... ... ... ... x 50c 194. Mature teleutospore head of same. (The markings are indistinct on accountof fioor condition of material) ... ... ... ... X 500 105. Detached teleutospores of same. Plate XXII. < H Robinson, x 250 & ECU. UROMYCLADIUM. LEGUMIN03AE-ACACIA. 286 Explanation of Plates. PLATE XXIII.{All Figures x 250 unless otherwise stated.) UROMYCLADIUM. Fig- i<p. Uredospores of I, notabile on Acacia nctabilis. Original type material of Credo notabilis Ludw. (Somewhat swollen by lengthened treatment with caustic potash.) 197. Uredospores of the same, showing the net-ike surface markings. ... X ;oo iqS. Compound stem, with basidia and uredospores of the same. 199. Compound structure from uredosorus l same, being probably commencement of teleutospore formation ... ... ... ... ... x 500 200. Uredospores of U. notabile on Acacia dealbata. 201. 202. Uredospores of the same, showing the net-like surface X 500 203. Portion of spermogonium of the same, with basidia bearing spermatia in chains. (Stained) ... ... ... ... ... x s°o 204. Cluster of three immature spores of the same, attached t
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