NEW LABOULBENIALES. 6G7 



Stigmatomyces verruculosus nov. sp. 



Habit rather long and slender. Receptacle elongate, the basal cell 

 quite hyaline, about four fifths as long as the subbasal, which is more 

 or less evidently suffused with pale brownish yellow; a more or less 

 distinct enlargement in the region of the septum, involving both cells; 

 the receptacle otherwise of nearly uniform diameter, or expanding 

 slightly distally. Stalk-cell of the appendage relatively short and 

 broad, its broad obliquely rounded base in contact with the subbasal 

 cell, more deeply suffused with dull reddish amber-brown, concolorous 

 with the perithecium and its basal and stalk-cells. Appendage 

 slightly divergent antl curved outward distally, consisting of three 

 cells, a small fourth cell sometimes distinguished; the basal cell con- 

 colorous with the stalk-cell and abruptly narrower, more than 

 twice as long as broad, and bearing distally two antheridia; the 

 second and third cells successively smaller, bearing two and one 

 ^especti^'ely ; the strongly cur\'ed termination of the appendage 

 terminated b}- two, the uppermost often undeveloped. Stalk-cell 

 and secondary stalk-cell of the perithecium of about the same size, 

 broader than long, the basal cells above them somewhat smaller, 

 the outer one and the secondary stalk-cell abruptly convex externally; 

 venter darker, granular-verruculose, rather short and stout, strongly 

 and symmetrically inflated, sometimes but slightly longer than broad ; 

 the wall-cells separated by a clean cut shallow groove, forming a 

 little more than one quarter of a turn; neck granular roughened, 

 but not very abruptly distinguished, tapering very slightly or not at all 

 from its slightly spreading base, distally abruptly slightly enlarged 

 below the tip; which is somewhat narrower, short and stout, symmet- 

 rical, not distinguished from the still shorter apex, the margins of which 

 curve abruptly and symmetrically to the rather broad, nearly truncate 

 termination; the lips hardly distinguished. Spores about 28 X 4 /i. 

 Perithecia; stalk- and basal cell region about 35 X 32 /x; venter 

 48-55 X 40 m; neck 62-75 X 18 /x; the tip and apex 19-21 X 14 fx. 

 Appendage about 60 /x. its basal cell 21 X 7.5 fj., its stalk-cell 27 X 

 10.5 fx: Total length to tip of perithecium 280-312 fi. 



On the abdomen of Ensina sp. Mandeville, Jamaica, Nos. 1711 

 and 1712. St. George, Grenada, W. I. No. 2061. 



This species is most nearly related to 8. Linmojjhorae, and is in 

 some respects intermediate between S. Ensinae and S. Aciurae. It 

 is distinguished from the first mentioned species by its verrucose, not 



