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HYMENOMYCETES 
Cortinarius (Telamonia) haematochelis (Gr. haima , blood; 
chelus , the chest—from the blood-red ring on the stem) 
differs from the preceding in the single red zone on the 
stem. In beech woods. In both the vermillion zone (or 
zones) is permanent after drying: 
Sub-genus 6 .—HYDROCYBE 
(Gr. hudov , water; kube , head—from the moist or hygro- 
phanous pileus) 
Cortinarius (Hydrocybe) castaneus ( castanea , a chestnut— 
from its colour), “ Chestnut-cap.” Plate XXXIX. 3. 
P. up to 2 in., campanulate, then expanded, with a more 
or less obtuse umbo, glabrous, brownish-chestnut, the umbo 
becoming blackish. G. adnate, at first purplish umber, 
then ferruginous. S. 1-1^ in., slender, almost equal, pale 
red or tinged violet, imperfectly hollow. Veil scanty, 
white, fibrillose. Gregarious in woods, pastures, and 
gardens. Common in late sum. and aut. Sometimes 
growing on wood; in this feature it is unique amongst 
species of Cortinarius. 
Cortinarius (Hydrocybe) obtusus (from the obtuse and 
disappearing umbo). 
P. ij-ij in., conical, then campanulate, obtusely umbonate, 
glabrous, margin striate, rusty-bay at first, then cinnamon, 
whitish-tan when dry. G. adnate, somewhat distant, very 
broad, connected by veins, ferruginous, then tawny-cinnamon. 
S. 2-4 in., slender, curved, attenuated below, fragile, yel¬ 
lowish-tan, white when dry. A strong-smelling species 
occurring in troops in pine woods in aut. and aut. 
Cortinarius (Hydrocybe) acutus, a scattered or gregarious 
species (P. i-f in., S. 3-4 in.), frequent in mixed woods, 
yellowish - honey colour, is remarkable in the acute 
umbo. 
