. j^a/" 3 Fio. 244.—Aie'alimii strobiliiiuia. 1, Cone-scalu of Spruce wiUi aecidia, those to left dehiscing their yellow spores, those to right still closed, (v. Tubevif del.) 2, Section through an immature aecidium. 3, Part of 2 enlarged—pi r, peridium ; sji, spores; ;?o, intermediate cells; uptr, sporophores ; m, mycelium; jurr, the scale-parenchyma. (After Reess.) The aecidia break out on the inner (rarely the outer) side of the bases of the cone-scales; each is enclosed in a firm brown lignified peridium, which ruptures by a cross-fissure and becomes an open disc. The young spores are

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. j^a/" 3 Fio. 244.—Aie'alimii strobiliiiuia. 1, Cone-scalu of Spruce wiUi aecidia, those to left dehiscing their yellow spores, those to right still closed, (v. Tubevif del.) 2, Section through an immature aecidium. 3, Part of 2 enlarged—pi r, peridium ; sji, spores; ;?o, intermediate cells; uptr, sporophores ; m, mycelium; jurr, the scale-parenchyma. (After Reess.) The aecidia break out on the inner (rarely the outer) side of the bases of the cone-scales; each is enclosed in a firm brown lignified peridium, which ruptures by a cross-fissure and becomes an open disc. The young spores are joined by small intermediate cells, which are gradually absorbed to form a layer of gelatinous lamellae on the spore-coats (Fig. 244). Teleutospores of this Aecidium are unknown.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherl, booksubjectfungi