. The rusts of Australia, their structure, nature, and classification . mewhat 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 sp
. The rusts of Australia, their structure, nature, and classification . mewhat 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 to their stalk. (Stained.) 205. Mass of mature teleutospores of the same, separated from each other, from Acacia decurrens. 206. Mass of scarcely mature teleutospores, separated from each other, of L . ferianum, on Acacia melanoxylon, from Cheltenham, showing striated mark-ings on the surface. These are considerably smaller than the average. Plate XXIII. U. H Robinsou, Phut UROMYCLADIUM. LEGUMINOSAE-ACACIA. 28& Explanation of Plates. PLATE XXIV. (All Figures X 250 unless otherwise slated.) 207. Teleutospores of U. his-porum, on Acacia dealbata, one cluster of two showing the common staik. 208. Teleutospores of the same. 200. Uredospores of U. alpinum, on Acacia , 211. Teleutospores of the same. 212. Five uredospores of U. atpinum on Acacia dallachiana, mixed with teleutospores and one mesospore (m). 213. 214. Successive stages in the development of teleutospore clusters of the same. (Stained.) ;i^. Croup of telentospores of the same. 216. Section of leaf of Acacia longifolia attacked by U. maritimum, the uredosori being at the margin of the inflated tubercle, and the spermogonia in thecentre ... ... ... ... ... ... ... X 30 217. Uredospore of U. maritimum attacked by some Hyphomycete, which has gained access to the interior of the spo
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