474 FUNGUS-FLORA. 



Allied to Morchella, but differing in having the lower half 

 of the pileus free from the stem. 



Growing on the ground in spring. Edible. 



Mitrophora gigas, Lev. Ann. Sci. Nat., 1846, p. 250. 



Pileus conical, obtuse, free from the stem for some distance 

 at the base, margin more or less wavy ; ribs stout, deep, 

 more or less longitudinal, branched and anastomosing, 

 enclosing irregular, elongated pits, smoky brown or with an 

 olive tinge, 5-8 cm. high, 5-6 cm. broad at the base ; stem 

 stout, elongated, whitish with minute rusty squamules, 

 often more or less sulcate, hollow, 9-13 cm. high, 5—6 cm. 

 thick at the base, narrower upwards ; asci cylindrical, apex 

 somewhat truncate, 8-spores ; spores 1-seriate, hyaline, 

 smooth, continuous, elliptical, ends obtuse, 21—24 x 11-14 /x; 

 paraphyses septate, stout, clavate. 



Phallus gigas, Batsch, Elench., p. 131. 



Morchella gigas, Pers., Syn. Fung., p. 619: Phil., Brit. 

 Disc, p. 6 ; Cooke, Mycogr., fig. 328 ; Sacc, Syll., viii. n. 21. 



On the ground, especially in sandy places. Spring. 



Agreeing with M. semilibera in having the base of the 

 pileus free from the stem, but distinguished by its larger 

 size, and by the stout, elongated stem being more or less 

 sulcate, swollen at the base, and sprinkled with minute, 

 rusty squamules. 



Specimen in Fckl., Fung. Ehen., n. 2089, examined. 



Mitrophora semilibera, Lev., Ann. Sci. Nat., 1846, 

 p. 250. 



Pileus conical, lower margin free from the stem about 

 half-way up, ribs prominent, more or less longitudinal, but 

 forking and anastomosing to form elongated pits, which are 

 varied, yellowish or dingy tawny, sometimes with an olive 

 tinge, edge of ribs often darker, 1*5-2 '5 cm. high, and 

 nearly as much across at the base ; stem hollow, stout, often 

 more or Jess thickened at the base, whitish or pallid, 4-7 cm. 

 high, 1-2 cm. thick ; asci cylindrical, apex rather truncate, 

 pedicel elongated, 8-spored ; spores hyaline, continuous, 

 smooth, broadly elliptical, 18-20 X 12 /x ; paraphyses 

 hyaline, slender, septate, slightly clavate. 



Morchella semilibera, 1). C, Flor. Fr., ii. p. 212 ; Phil., Brit. 

 Disc, p. 7 ; Cooke, Mycogr., fig. 321. 



