MOKCHELLA. 475 



On the ground in woods. Spring. 



Specimen in Phil., Elv. Brit., n. 51, examined. 



MORCHELLA. Dill. (figs. 1-3, p. 188.) 



Stipitate or subsessile; pileus globose, or ovate, adnate 

 throughout its length to the sides of the stem, remaining 

 closed at the apex, hollow and continuous with the cavity of 

 the stem ; externally furnished with stout, branched and 

 anastomosing ribs or plates, every part bearing the hy- 

 menium ; stem stout, stuffed or hollow ; asci cylindrical, 

 2 4^8-spored ; spores 1-seriate, continuous, hyaline, ellip- 

 tical ; paraphyses septate, clavate. 



Morchella, Dillenius, Nov. Gen., p. 74 (1719); Phil., Brit. 

 Disc., p. 2 ; Sacc., Syll., viii. p. 8 (in part). 



Most nearly allied to Gyromitra ; differs in the ribs of the 

 pileus being deep and plate-like, and anastomosing to form 

 elongated or irregularly polygonal, deep pits. 



Growing on the ground in the spring. 



Morchella crassipes. Pers., Syn. Fung., p. 621 ; 

 Cke., Mycogr., fig. 319 ; Phil., Brit. Disc., p. 5 ; Sacc., Syll., 

 viii. n. 19. 



Pileus broadly conical-ovate, obtuse, brownish, pits large, 

 irregular in form, deep, base rugulose, not longer than broad, 

 ribs stout, adnate at the base to the 4em, hollow, the cavity 

 continuous with that of the stem, 5-7 cm. high and almost 

 as broad at the base ; stem 2-3 times as long as the pileus, 

 and nearly as thick at the lacunose base, slightly narrowed 

 upwards, almost glabrous, pallid or tinged flesh-colour; 

 asci cylindrical, apex somewhat truncate, 8-spored ; spores 

 obliquely 1-seriate, smooth, continuous, elliptical, ends 

 obtuse, with a yellowish tinge at maturity, 20-22 x 11-12 /A; 

 paraphyses septate, slightly thickened upwards. 



On the ground. Spring. 



Agreeing with M. esculenta in having the pits of the 

 pileus irregular in form, not much, if at all, longer than 

 broad, and in not having a main series of more or less 

 parallel and vertical ribs; differing in the stout stem being 

 much longer than the pileus. 



