. The Canadian field-naturalist. Natural history. 130 The Ottawa Naturalist [Vol. CHARAC'TKKISTIC OAK GALLS: A. Hud-like palls on oak twl^.s. somotimos very aljundaiU and .« produco a swi-etish lluid, of lu-fS. and other insects may be attracted in early summer. ]{. Oak sV)anKles. i)roduceink-marked woolv growth ooniaining s l-like cells each inhabited by a white maggot. K. Mid-rib tumor gall sectioned to show the series of cells inhabited l)y the white maggots. K. .'^nmll oak apple, the one In .section shows the characteristic central ell iidiabited bv a mag
. The Canadian field-naturalist. Natural history. 130 The Ottawa Naturalist [Vol. CHARAC'TKKISTIC OAK GALLS: A. Hud-like palls on oak twl^.s. somotimos very aljundaiU and .« produco a swi-etish lluid, of lu-fS. and other insects may be attracted in early summer. ]{. Oak sV)anKles. i)roduceink-marked woolv growth ooniaining s l-like cells each inhabited by a white maggot. K. Mid-rib tumor gall sectioned to show the series of cells inhabited l)y the white maggots. K. .'^nmll oak apple, the one In .section shows the characteristic central ell iidiabited bv a maggot ami sujiported by numerous radiating nbres. O. A peculiar cvlindrical-spined. rosv r. d yellow- banded Kail on a western oak. M. Gouty oak gall, a large swelling forming bead-like eidargements on most of the smaller branches of various oaks, large trees sr)metlmes being badly infested.—(Author's Illustrations. Scientific Monthly.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa
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