THAXTER. MONOGRAPH OF THE LAIHHLBKNI M I 1 . 'A ~> 
Laboulbenia spiiyri psis Thaxter. Plate LV1I, fig, 5. 
Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, ]>. f>:5. June 1902. 
Perithecium free, projecting at right angles to the axis of the receptacle or recurved, opaque, blackish 
brown, slightly asymmetrically inflated below, the tip not distinguished, very broad, truncate or bluntlj 
rounded, concolorous. Receptacle relatively slender, hyaline, cells I and II relatively \erv large, (he rrsl 
small; cell I shorter, often tinged with brown; cells II and 111 edged with blackish brown external!} 
cell IV wholly blackish brown; cell V hyaline or partly suffused, the insert ion-<vIl thick. Basal cell <>i 
the outer appendage more or less suffused, giving rise to an outer and an inner branch; tin- basal cell of 
the former giving rise to an outer, shorter, and an inner hranchlet; the inner branch simple: basal cell 
of the inner appendage bearing a simple branch, distally furcate above its baa I cell; the branchlets both 
fertile, short, with a single terminal antheridium; or one of them sterile and similar to the outer appendag* 
short, stout, nearly straight, stiff, opaque, hyaline-tipped: the antheridia relatively large, solitary; tin 
broad neck bent abruptly at right angles. Perithecia 1)0-110 X 40-48 /*. Receptacle 220-2.7) pu Ap- 
pendages 150-185 /i. 
On Metromenus caliginoms Blk., Oaliu, Honolulu, M. epicuru* Blkm. No. 1261, and No. 1262. No 
1256 on M. latijwns sp. Molokai Mts., Maui. Perkins Collection, Hawaiian Carahida-. Right inferior 
surface of prothorax. 
This species, which is allied to both L. Hawaiiends and />. Ditenochi, m well distinguished by its 
peculiar hammer-like habit, and absolutely opaque blunt perithecium. The slender, nearly bodiametric 
])erithecium is at first quite hyaline, but may become slightly soiled with yellowish brown, as well a 
deeply suffused externally below the insertion cell. The type form on .V. caliginosus was obtained from 
several individual hosts always in the same position and does not vary. The form on M. epkurui and M 
latijrons is slightly different/in that the perithecium does not project at right angl< iron, the r eptadi 
is somewhat narrowed toward the tip, while the stiff black branchlets of the apj>cnda P are distally en- 
larged, having a club-shaped habit. 
Laboulbenia cauliculata Thaxter. Plate LYII, figs. 8-10. 
Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 29. 
1 902 
Perithecium short and stout, straight or slightly curved, inflated more prominently on ita inner side; 
dull olivaceous brown, translucent, or becoming opaque; the basal wall-cells forming i well-defined pde 
olivaceous or hvaline narrow stalk; the tip black, broad, not distinguished, except by ita color; the rati r 
coarse, but not prominent, lip-edges hyaline and outwardly oblique. Receptade relatively short and 
small, the basal cell usually curved, narrow and subhyalinc below, becoming opaque and punctate dis- 
tally; the subbasal cell having only a small portion of its posterior margin free, cell 1 1 1 being jubtriangular 
and overlapping it; cell IV nearly as broad as, and somewhat larger than cell HI, separated from cell . 
which may equal it in size, by a'vertical or but slightly oblique septum; cells 11 \ I mostly transhjcenl 
yellowish brown, often becoming opaque. Insertion-cell rather broad: basal celb of the appendages 
hardly distinguishable, the outer giving rise abruptly to usually two erect, or slightly d.vergeni. .tit 
bristle-like, curved branches, which are blackish brown, externally opaque, producing short hjalinj 
branchlets along their hvaline inner margins: the basal cell of the inner appendage producing a -ranch 
on either side consisting of from one to two cells from which arise several h^^f^ * ™ * 
the outer appendages. Spores 58 X 5 ft 
125-165 X 45-60 
90-100 X 35-40 a. Appendages 125-185 
On C 'olpocaccv 8 Lanaiensis Sharp, No. 
deprcssus Sharp, Lanai, No. 1231; A. const 
Sharp, Hawaii, No. 1238; M. alirrnans Sha 
M. muscicola Blkm., No. 1236, Tahura; Bit 
numbers of the Perkins Collection of Hawaiian Carabida? as follow 
No. 1250; Maui. Nos. 1214, 1253, 1255, 
y 
