MONOGRAPH OF THE LABOULBENIACEiE. 



333 



The appendages of this curious species distinguish it from all others, and in their successive 

 one-sided branching recall those of the genus Tcratomyccs, this one-sided habit being even char- 

 acteristic of the antheridial branchlets (fig. 3). It is scarcely possible to determine in the 

 material available whether the inner basal cell produces a series of branches on either side or 

 only one series. Assuming that the last is true, the fundamental habit of branching is not 

 unlike that of L. Brachini, although the insertion of the primary scries in the latter is more 

 nearly horizontal. The types were taken from a specimen of the host in the Museum of Com- 

 parative Zoology, growing at the tips of the elytra and on the adjacent portions of the abdomen. 



Laboulbenia Galerit.e Thaxtcr. Plate XIX, figs. 9-12. 



Proc. Am. Acad. Arts and Sci., Vol. XXVII, p. 39. 



Perithccium becoming almost opaque, transversely punctate, elongate, sub-cylindrical, tapering 

 rather abruptly to the blunt apex ; the lip-cells turned slightly outward ; the basal wall-cells form- 

 ing an abruptly differentiated, clearly defined hyaline neck-like base. Appendages consisting of 

 two basal cells, hyaline above, black below, above which rise three connected series of superposed 

 cells ; one outer and two inner, each producing from three to six single simple branches, and 

 forming a sub-conical body : the branches, one from each cell, tapering slightly, their distal por- 

 tions straight, slightly divergent, hyaline, remotely septate ; the basal portion more or less 

 suffused with blackish brown, more closely septate, the segments inflated and constricted at the 

 blackened septa. One or two of the lower branches from the two inner series are fertile, 

 consisting of a single cell bearing terminally a group of from two to five long-necked, 

 slightly curved, brownish antheridia. Insertion cell broad, free from the base of the perithe- 

 cium. Receptacle variable, often elongate, cells III and IV externally or almost wholly 

 blackened and opaque, the remaining cells hyaline or with brown suffusions. Spores, 50 x 5.5 fx. 

 Perithecia 155 x 37 fx. Appendages (longer branches), 350 fx,. Total length to tip of peri- 

 thccium, 375 fx. Maximum, 600 //.. 



On Galerita janus Fabr., District of Columbia (Pergande) to Alabama (Henderson); Gr. 

 atripes Lee, Kansas ; Galerita sp., Iowa ; Gr. mexicana Dej., Mexico. 



This common and well marked species is apparently widely distributed, and can hardly be 

 confused with any other form unless it be the succeeding species ; which is, however, immediately 

 separable by the position of cell III, although in both the same more or less conical or pyra- 

 midal base gives rise to the three vertical series of branches, two inner and lateral and one 

 outer, which are so characteristic in their appearance. In some cases the tips of these branches 

 have a spiral twist, which is probably accidental, but otherwise the species is a very constant 

 one. I know of no other form in which the pcrithecium is so conspicuously punctate, the spots 

 being arranged more frequently in rather definite transverse lines and themselves often elon- 

 gated transversely. The species occurs scattered indefinitely over the surface of its host, more 

 often on the elytra. 



