3«0N0GRArn OP THE LABOULBEMACE.E. 313 
position of the bi-anchcs. It is evidently related to L. Schizogenli mul if-s nlHcs, but cnniiot bo 
confused with any described species. It appears to be a rare form and occurs scattered here 
and there on various parts of its host. 
Laboulbenia Sciiizogenii Tbaxter. Plnte XXI, figs. 13, 15. 
Troc. Am. A. ad. Arts and Sci. Vol. XXV 11, p. 43. 
reritheciuni blackish brown, deeper below the tip, sometimes nearly opaque, milior short 
and stout, inwardly inflated and united with the receplaclc t.. its very tip; the hynlinc extremi- 
ties of the lip-cells only free, and bent slightly outward. Aj.pcndagos arising from a black 
insertion-cell, consisting of two basal cells, which may be longitudinally several times divided, 
bearing distally two to several nearly hyaline brnnchcs, which may in turn be several times sub- 
dichotomously branched, the ultimafe branclilets flexuous. "Receplaclc hyaline or straw colored, 
sometimes distally sulTuticd with brown, bulging outward |)rominently and evenly in the region 
of cells 111-V; cell V elongated towards the tip of the perithecium, carrying the insertl..n- 
cell outward free from the ])erithecium. Spores, 70 X 6.5 yit. Pcrilhccia, 1 00-1 25 x 50-5/) /i. 
Appendages (longer), 270 fx. Total length to tip of perithecium, 350-450 yn. 
/< 
ft 
TJiis well marked species is quite rare, never occurring in any great alunulanco cm any 
single host. 
although small specimens like that represented by fig. 14 sometimes occur. It is most 
append a go s 
related to L. Clivince. 
pon 
Laboulbenia Philontui Thaxter. Plate XXII, figs. 2G-30. 
Proc. Am. Acad. Arts and Sci. Vol. XXVIII, p. 174. 
Perithecium rather narrow, beginning to tai)er almost from its base to the somewhat coarse- 
lipped apex, both margins often almost straight. Appendages consisting of two basal cells, ilie 
inner producing several (two to five) branches, which arise by successive proliferations on cither 
side, forming two rows running side by side autcro-posteriorly : the outer appendage and the 
branches of the inner erect, simple, rather rigid, tapering considerably, two or three of the 
lower septa blackened, the cells between them distinctly inflated. RecP[.tacle hyaline or slightly 
sufTused, normal, except that the basal cell is sometimes hoof-shaped, a jmrtion of it blackened 
and continuous with the foot. Spores, 52 X 4 /t. Perithecia, lGO-185 x 50-70 ^. Appendages 
(longer), 325^. Total length to tip of perithecium, 400-450/1 ; longest, 500 ^. 
On Philonthus cunctam ITorn, P. micans Grav., P. dehilis Grav., and numerous undeter- 
mined species. New England ; P. cequalis ITorn, Lake Superior; P.furvus Nord., California. 
This species is by no means uncommon on all parts of its hosts, and may be recognized by 
the peculiar form of its perithecium and the rigid, erect branches of its appendages, the 
J 
inflated basal cells of which recall those of Z. iujluta. The insertion-cell is not very deeply 
blackened, and a hyaline pointed portion is more or less distinct between and below the two 
basal cells of the appendages. The inner of these cells apj.ears to become divided into a num- 
