NEW LABOULBENIALES. 675 



vesicular, hyaline, often forming a slightly bent, snout-like termina- 

 tion. Spores 35 X 4/x. Perithecia, venter 60-75 X 22-28 ju; distal 

 portion 50-58 X 15 m- Length from foot to base of venter 50-70 X 

 22-30 fi. Appendage about 40-45 jjl. Total length to tip of perithe- 

 cium, 150-175 ix. 



On the abdomen, legs and base of wing of FaraUmna ciliata Cress., 

 No. 1811 (Type), Fayetteville, Arkansas. No. 1731, Mandeville and 

 No. 2052 and 2042 Clarkstown, Jamaica, W. I. No. 2805, St. George, 

 Grenada, W. I. 



The material from Fayetteville, which was obtained for the most 

 part of the abdomens of several individual hosts, has been taken as 

 the type of this species, while shorter straighter and less characteristic 

 forms were taken from the legs. The material from the West Indies 

 differs somewhat from the type, the distal portion of the perithecium 

 tapering a little more distinctly to the apex, which is thus slightly 

 narrower, and is more often slightly but abruptly bent, two of the 

 lips-cells being more prominent than the others, and giving the ex- 

 tremity a more snout-like habit. 



A further variation, in which the distal portion of the perithecium 

 is more or less prominently recurved, has also been found on West 

 Indian material of P. ciliata: No. 1916, Porous, Jamaica; Nos. 

 2805 and 2810, St. George, Grenada; also on a specimen collected by 

 Mrs. J. B. Rorer at Bocas del Toro, Panama. This form always 

 occurs near the base of the left wing, and is larger than the type, 

 measuring up to 275 ju or more in length. The venter of the perithe- 

 cium is often more distinctly narrowed distally and may measure 

 100 X 38 ij., the recurved distal portion measuring about 80 X 14 fx. 

 The portion comprising the receptacle and the perithecial base, is 

 also relatively longer, as compared with the type. 



A still more striking departure from the short stout Type is seen in 

 a variety which occurs near the base of the legs. This variation is 

 characterized by its more slender and elongate habit, attaining a total 

 length of nearly 300 /x, and being more or less evenly curved, as a rule, 

 from base to apex. The venter of the perithecium is more or less 

 symmetrically inflated, and the tip is usually distinguished by a rather 

 abrupt, though slight, subterminal bend. The cells of the receptacle 

 are much elongated, and almost all individuals are slightly twisted, so 

 that one views the receptacle edgewise in most preparations. Ma- 

 terial of this variety has been examined from Mandeville and Clarks- 

 town, Jamaica, Nos. 1732 and 2055, the latter on P. decipiens, the 

 former on P. ciliata: also from St. George, Grenada, Nos. 2805 and 

 2610, on P. ciliata. 



