MORCHELLA 241 



below; stem of almost uniform thickness throughout its entire 

 length, the diameter almost equal to that of the pileus, irregu- 

 larly lacunose near the base, nearly even above, delicately 

 pubescent; asci cylindric or subcylindric, reaching a length of 

 275 ^i and a diameter of 20 ^u; spores 1 -seriate, ellipsoid, hyaline 

 or very faintly colored, yellowish in mass, 12-14 X 24-28 m; 

 paraphyses enlarged upwards. 



On sandy soil in the borders of woods and open places. 



Type locality: West Albany, New York. 



Distribution: New York to Pennsylvania and Michigan; 

 also in Europe. 



Illustrations: Bull. N. Y. State Mus. 1-: pi. I, f. 19-20; 

 Ann. Rep. N. Y. State Mus. 48: pi. 4, f. 5-9; Bond. Ic. Myc. 

 pi. 206 and (? 213). 



6. Morchella hybrida (Sow.) Pers. Syn. Fung. 621. 1801. 

 (Plate 36, fig. 1.) 



?Phallus Rete Batsch. Elench. Fung. 131. 1783. 



Elvela hybrida Sow. EngL Fungi pi. 238. 1799. 



?MorcM\a patula Pers. Syn. Fung. 619. 1801. 



Morchella rimosipes DC. Fl. Fr. 2: 214. 18LS. 



?Morchella Rete Pers. Myc. Eu. 1: 205. 1822. 



Mitrophora semilihera Lev. Ann. Sci. Nat. III. 5: 250. 1846. 



?Mitrophora patula Lev. Ann. Sci. Nat. III. 5: 250. 1846. 



Mitrophora rimosipes Lev. Ann. Sci. Nat. III. 5: 250. 1846. 



Morilla semilibera Quel. Ench. Fung. 271. 1886. 



Morchella Mitra Lenz, Schwamme 103. 1831. 



Phalloboletus Rete Kuntze, Rev. Gen. PI. 2: 865. 1891. 



Morchella hybrida rimosipes P. Henn. Verb. Bot. Brandenb. 36: 68. 1895. 



Phalloboletus rimosipes Kuntze, Rev. Gen. PI. 2: 865. 1891. 



Morchella piinctipes Peck, Bull. Torrey Club 30: 99. 1903. 



Mitrophora hybrida Boud. Hist. Class. Disconi. Eu. ii. 1907. 



Pileus bell-shaped or subconic, reaching a length of 2 cm. 

 and a diameter of 1.5 cm., the margin free about half way up; 

 pits irregularly rounded or elongated, reaching a diameter of 

 5-10 mm., yellowish within; ribs inclined to be longitudinal or 

 irregularly anastomosing, about 1 mm. thick, whitish, lighter 

 than the interior of the pits; stem thick, at first very short, 

 finally reaching a length of 8-10 cm. and a diameter of 2 cm. at 

 the base, gradually tapering upward to about half that diameter, 

 delicately pubescent, whitish or yellowish, often irregularly 

 lacunose at the base, nearly even above; asci cylindric or sub- 

 cylindric, reaching a length of 250 /^ and a diameter of 20//; 



21 



