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. Fifi. lO^i.—Sphaerella laricina. Section through a diseased spot on a larch needle. The interior of the leaf is permeated with the intercellular mycelitim. Two conidial cushions are shown ; from these numerous long rod-shaped conidia are given off externally (those of the upper cushion have nearly all been carried off by rain), while cavities inside the cushions are filled with micro-conidia. X if ii. (After R. Hartig.) appear. Their distribution and germination are facilitated by wet weather. The perithecia (Fig. 104) are matured towards

. Fifi. lO^i.—Sphaerella laricina. Section through a diseased spot on a larch needle. The interior of the leaf is permeated with the intercellular mycelitim. Two conidial cushions are shown ; from these numerous long rod-shaped conidia are given off externally (those of the upper cushion have nearly all been carried off by rain), while cavities inside the cushions are filled with micro-conidia. X if ii. (After R. Hartig.) appear. Their distribution and germination are facilitated by wet weather. The perithecia (Fig. 104) are matured towards Stock Photo
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The Bookworm Collection / Alamy Stock Photo

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MCK6CC

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14.3 MB (511.6 KB Compressed download)

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3564 x 1402 px | 30.2 x 11.9 cm | 11.9 x 4.7 inches | 300dpi

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