The Botany of Iceland - 01.12.1941, Page 26

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M. P. CHRISTIANSEN
72. C. (Telamonia) helvelloides Fries, Epicr., p. 237. Poul Larsen, Fungi of
Iceland, p. 537, no. 533. J. E. Lange, Fl. Agar. Dan., vol. III, t. 97, f. A.
Laugarvatn, 5.VIII.1935. In birch copses.
Spores ovate ellipsoidal, punctate, 9—10 X 5—6 /L Plate, fig. 46.
73. C. (Dermocybe) CÍnnamomeus (Linné) Fries, Epicr., p. 288. Poul Lar-
sen, Fungi of Iceland, p. 540, no. 542. J. E. Lange, Fl. Agar. Dan., vol. III,
t. 95, f. F.
Slúttnes in Mývatn, 31.VII. 1935. Among moss under birch and willows.
Spores ovate oval, finely verrucose, 7—8 X 5—5.5 JU. Plate, fig. 47.
74. C. (Dermocybe) anomalus Fries, Epicr., p. 286. Poul Larsen, Fungi of
Iceland, p. 540, no. 543. J. E. Lange, Fl. Agar. Dan., vol. III, t. 94, f. C.
Laugarvatn, 5.VIII.1935. In birch copses.
Spores subspherical, punctate, 8—8.5 X 6.5—7 JU. Plate, fig. 48.
75. *C. (Myxacium) delibutus Fries, f. gracilentus n. f. J. E. Lange, Fl.
Agar. Dan., vol. III, t. 90, f. E., C. delibutus.
Laugarvatn, 5.VIII.1935. Among moss in birch copses.
A slender form. Cap 1.5—2.5 cm broad, flat-convex with low obtuse, umbo and
sharp edge, the umbo yellow (b6), edge paler with a violet tinge, slimy, when
dry viscous, margin somewhat silky shining, striate. Stipe c. 7 cm high, 5—6 mm
thick with somewhat dilated base, slimy, violet at apex (o4), covered with a pale
yellow velum forming a ring. Flesh of cap olivaceous-brownish, in stipe greyish.
Gills somewhat crowded, emarginate-adnate, with a decurrent tooth, pale reddish-
brown (c 7).
Spores subspherical, verrucose-punctate, 7—8 X 6-—6.5 ,U. Plate, fig. 49.
76. C. (Myxacium) collinitus (Persoon) Fries, Epicr., p. 274. Poul Larsen,
Fungi of Iceland, p. 541, no. 547. J. E. Lange, Fl. Agar. Dan., vol. III, t. 88, f. B.
Garður-Grænavatn, 30.VII.1935. Laugarvatn, 5.VIII.1935. In a moist meadow
and under birches.
Spores obliquely ellipsoidal, verrucose, 13—14 X 6—7 JU. Plate, fig. 37.
Amanitopsis Roze.
77. A. vaginata (Bulliard) Roze, var., fulva (Schaeffer). J. E. Lange, Fl.
Agar. Dan., vol. I, t. 7, f. B. Poul Larsen, Fungi of Iceland, p. 541, no. 548.
Laugarvatn, 5.VIII.1935. Under birches. The specimens collected were sterile.
78. *A. vaginata (Bulliard) Roze, var. plumbea (Schaeffer). J. E. Lange,
Fl. Agar. Dan., vol. I, t. 6, f. B.
Skútustaðir near Mývatn, 28.VII.1935. In lavafields. Laugarvatn, 5.VIII.1935,
numerous in a birch copse. Korpúlfsstaðir near Reykjavík, 7.VIII.1935. On knolls
in a meadow.
Cap 5—10 cm broad, campanulate, at last expanded, grey, margin sulcate. Stipe
elongate-conical, 8—10 cm high, 1—1.5 cm thick, somewhat bulbous, hollow, white,
floccose-squamulose, no ring, the lower third of the stipe covered with a loose sheath.
Gills white, free.
Spores white, globose, 9—11 X 8.5—10 JU. Plate, fig. 50.