14 THAXTER. 



receptacle is triseriate; the lower halves of the basal cells of the two 

 lateral series in contact, the upper separated through the intrusion of 

 the basal cell of the middle series. Cells of the middle series slightly 

 longer than broad, for the most part, thirty-two to thirty-four in 

 number, their walls becoming suffused with yellow brown from below 

 upward; the distal eight or nine small, flattened, with rounded con- 

 tour, partaking of the yellow brown suffusion of the perithecium to 

 which they are united; the series ending a short distance below the 

 base of the deeply suffused tip, and opposite and within the basal cell 

 of the primary appendage. The anterior row consisting of from 

 forty-two to forty-four cells, the lower two or three deeply suffused, 

 the suffusion decreasing upward; these, and a few cells above them, 

 decreasingly ol)lique in relation to one another; three or four of the 

 distal cells of the series, which ends abruptly at the persistent insertion 

 of the trichogyne which subtends the deeply suffused tip of the peri- 

 thecium, being without appendages; while of the remaining cells, 

 about eight or ten at both the upper and lower ends of the series, cut 

 off one, or two, appendiculate cells from the upper outer angle; while 

 all the rest cut off three such cells, the successive groups of threes 

 forming a continuous and more or less symmetrically disposed lateral 

 series, the successive groups partly separated by the external pointed 

 prolongation which characterizes each of the cells of the main anterior 

 axis in this region; the appendiculate cells bearing, subtended by the 

 usual cup-shaped suffused septa, either short hyaline inconspicuous 

 appendages, or longer curved flask-shaped purplish brown antheridia, 

 the venters of which are at first quite hyaline, two antheridia more 

 commonly associated with one appendage in these sets of three. 

 The posterior row ending in the two-celled base of the primary append- 

 age, the subbasal cell of which is small and free, while its basal cell 

 appears to end the distal row, from the members of which it is in no 

 way distinguished, and which comprises from thirty-five to forty cells 

 similar in general to those of the anterior series, and producing an- 

 theridia and appendages in a similar fashion, and subsymmetrically 

 placed in relation to them. Perithecium rather long, slightly and 

 subsymmetrically inflated, erect, or turned slightly to one side, deeply 

 suffused with brown, translucent; almost wholly enclosed, except the 

 broad short nearly symmetrical abruptly distinguished opaque tip, 

 and a very small portion of its anterior margin; the apex hyaline, 

 contrasting, abruptly distinguished, the distal margin slightly uneven 

 from the minute projecting lip-cells. Perithecia 100-112 X 28-30 ^u, 

 or including the marginal cells of receptacle, X 46-55 /x. Total 



