Note 536 — LETTER IX.
Reading edition
Grundriss der Kräuterkunde, 353. A writer however in the Annual Medical Review (ii. 400.) doubts the accuracy of this fact, on the ground that he could never find C. pennicornis, though A. Clematitis has produced fruit two years at Brompton. Meigen (Dipt. i. 100. e.) places this amongst his doubtful Cecidomyiæ. Fabricius considers it as a Chironomus.