. Flii. '21'2.—Cliri/soiiii/xii iiKxloit' lulri on Spruce. The needles are beset with aecidia; discoloured imrts of them are shown black, the nmnially green being left white, (v. Tulieiif d-1.) Chr. abietis (Wallr.).! Xeedle-rust of si>vncc. This is puiasiiic, nil ihc spruce {J'irrii cjxclsa), and is found on the Alps up to an elevation of over 1700 metres. .Mmjui ihc l)egiuniiig «if May the hilx'rnatiuLr teleutospores produce promycelia and sporidia. 'i'he latter genuiuate at once, and the germ-tubes make their way througli the epidermis into young unfoltling needles. The myeelium is well-
. Flii. '21'2.—Cliri/soiiii/xii iiKxloit' lulri on Spruce. The needles are beset with aecidia; discoloured imrts of them are shown black, the nmnially green being left white, (v. Tulieiif d-1.) Chr. abietis (Wallr.).! Xeedle-rust of si>vncc. This is puiasiiic, nil ihc spruce {J'irrii cjxclsa), and is found on the Alps up to an elevation of over 1700 metres. .Mmjui ihc l)egiuniiig «if May the hilx'rnatiuLr teleutospores produce promycelia and sporidia. 'i'he latter genuiuate at once, and the germ-tubes make their way througli the epidermis into young unfoltling needles. The myeelium is well-developed and lives iiiter- cellularly, sending haustoria into the host-eells; it cuiiiains yellow oil-drops, so that liy tlie eml of .lune needles contain- ing it exhibit yellow-coloured strijies. For the remainder of the year reddish-yellow eh^ngated teleutospore-cushions are ' , linhin. Z'i/ilii;/, ISJi.'); />/. /:oif/,i/\f'iiriil> il 'I. ihiltitrhrn ConifVrtll. |S69. NVillkoimii, />/. ),ilkr<jMr(j/,iM,l„„ ,/,, M'(i/'/. s, 1 S(
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectparasit, bookyear1897
