CLASSIFICATION 497 



speaking, but very much twisted or contorted, and in such cases 

 the ascophores are as a rule clustered or crowded together. 



0. leporina. — Ascophore \'arying from obliquely cup-shaped to 

 rabbit-ear-shaped, divided to the base on one side, edge usually 

 more or less incurved, narrowed below into a short stem-like base, 

 dingy pale ochraceous or washleather-colour, the disc often a shade 

 darker than the outside, 1-3 in. high and broad (spores elliptical, 

 colourless, smooth, 12-15x7-8 /^). 



The disc is sometimes slightly wrinkled. 



On the ground in woods among leaves, etc. 



0. onotica. — Ascophore very variable in form, usually rabbit-ear- 

 shaped, but sometimes almost cup-shaped and entire, narrowed below 

 into a short, wrinkled, stem-hke base ; disc pale orange, usually 

 with a tinge of rose-colour, outside pale tawny orange, i|-3 in. 

 high, up to 2 in. across (spores smooth, colourless, elhptical, 10-14 x 

 6-8 /x). 



Differs from 0. leporina in the brighter colour of the ascophore, 

 and from 0. aunintia in the smooth spores. 



On the ground in woods, among leaves, etc. 



0. aurantia. — Ascophore sessile, clustered, irregular in shape, 

 much contorted and plicate, or growing singly and more or less 

 regular in outline and saucer-shaped, often becoming almost plane, 

 thin, brittle ; disc deep clear orange, or sometimes orange-red, 

 outside paler, sometimes almost white, 1-2 1 in. across (spores 

 i-celled, elliptical, colourless, at first smooth, then covered with a 

 delicate network of raised ribs, 15-16x7-8 /x). 



Sometimes much crowded, with the edge raised and very much 

 waved and more or less incised, at others scattered, smaller, almost 

 or quite symmetrical in form, and finally spread flat on the ground, 

 very brittle. Easily known by the large size, bright orange disc, 

 pale, downy outside, and the netted spores. 



On the ground, often near stumps or among chips. 



var. stipitata. — Disc bright scarlet ; stem more or less elongated. 

 Small. 



var. atromarginata. — Disc blood-red, wrinkled, edge black ; 

 spores warted, up to i in. across. 



0. lutco-nitens (PI. XXXVIII, fig. 7). — Ascophore globose at first, 

 then expanding until more or less plane, wavy and irregular in out- 

 line ; disc varying from bright orange-yellow to primrose-yellow% 

 externally paler, edge almost smooth, \-\ in. across, but size vari- 

 able (spores colourless, elhptical, smooth for some time, then be- 

 coming minutely warted, 12-13x6-7 ji). 



Gregarious or sometimes crowded. Differs from 0. aurantia in 

 its smaller size. 



On bare ground in dam}) places. 



