358 OUTLINES OF BUITISII FUNGOLOGY. 



Order 23. ELVELLACEI. 

 Hymcuiurn at length more or less exposed. Substance soft. 



242. MORCHELLA, Dill. 



Receptacle clavate or pileate, impervious in the centre, sti- 

 pitate, covered with the hymcnium, which is deeply folded 

 and pitted. 



1. M. esculenta, P. ; pileus ovate, aduatc at the base; ribs 

 firm, anastomosing, and forming deep pits; stem even. (Plate 

 21, fig. b.)—Grev. t. 68; Huss. i. t. 13. 



In woods, gardens, etc. Esculent. Varying much in 

 breadth and height, sometimes conical [no. 553), sometimes 

 almost cylindrical. 



2. M. patula, P. ; pileus obtuse, free halfway up ; pits 

 rhomboid; stem even. — Sow. t. 51, in part. 



In woods, etc. Rare. 



3. M. semilibera, DC ; pileus conical, free halfway up ; 

 ribs longitudinal, forming oblong pits, which are veined with- 

 in ; stem even. — Grev. t. 89. 



Under hedges, etc. Not uncommon. 



243. GYROMITRA, Fr. 



Receptacle inflated, bullate, rough with raised gyrose ribs. 



1. G. esculenta, Fr.; pileus inflated, irregular, undulated, 

 gyroso-rugose, brown ; margin united with the even villous 

 stem : [no. 825.) 



In pine-woods. Rare. Wcy bridge, F. Currey. 



211. HELVELLA, L. 

 Receptacle pileate, hanging down over the stem, concave 

 and barren below. Hymenium even. 



