2.Hypophyses
purple-red, convex-umbrelliform; leaf margins serrate almost
throughout 5. S. rubrum
A boreal species extending as
far south as S. ampullaceum in the hemiboreal zone. It occurs
in wet forests and peatlands on mammal dung (bears, boars, cows,
etc.).
— Hypophyses yellow to
whitish, discoid-umbrelliform; leaf margins serrulate to subentire
above, entire below 3
3.Hypophyses
yellow, 7–15 mm in diameter, urns yellowish to orange; setae 10–20
cm 6. S. luteum
Locally common (e.g.,
in Yakutia and Kola Peninsula) in northern parts of the boreal zone,
especially in areas with reindeer pasturing. There are a few, mostly
old, records of the species in more southern regions, and this may
indicate a decline in its range and abundance. The species also has
a limited distribution in the Arctic. It grows in wet or moist
places on the dung of reindeer and cows, dead Lemmus bodies
and other animal-derived substrates.
— Hypophyses whitish, 3–5
mm in diamater, urns purple; setae 1–3 m 7 . S. melanocaulon
This species is known in
Russia from only four, very isolated localities: St.Petersburg area;
the Komi Republic; lower Yenissey River; and Kamchatka.
4(1). Hypophyses as wide as or only slightly wider than urns; upper leaves
entire 5