318 MOXOGRAPH OF THE LABOULBENIACE^. 
inferior surface of its host, near the base of the middle pair of legs. 
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Laboulbenia vulgaris Pejritsch. Plate XIII, figs. 1-3. 
Peyritsch, Sitz. der Wien. Acad. Vol. LXVIII, p. 248, Plate II, figs. 17-26; Sorokin, Veg. Paras, of Man, etc, Vol. II, p. 417, 
Plate XXXII, figs. 760, 764, 766-7G9 ; Winter, Die Pilze Deutsch. Band. II, p. 920, fig. 1, 922; Berlese, Malpighia, 
Vol. Ill, p. 56; Saccardo Sylloge, Vol. VIII, p. 912 ; Thaxter, Proc. Am. Acad. Arts aud Sci. Vol. XXVII, p. 44. 
IXyalinc, becoming more or less suffused with blackish brown. Perithccium becoming 
blackish, usually rather narrow, its apex large and blunt, commonly bent outward. Appendages 
consisting of two basal cells, the outer usually much the largest ; the single outer appendage 
usually simple, or bearing two or three usually simple branches from its second or third cell ; 
L 
the inner producing usually two very short branches ; the insertion-cell placed opposite the 
middle of the pcritheciura. Receptacle often rather elongate, the basal and sub-basal cells form- 
ing a stalk, rather abruptly widened distally,and colorless or more or less suffused about the sep- 
tum. The distal portion of the receptacle also more or less suffused. Spores, 54 x 4 ^. 
Pcrithecia, 110-150 x 44-48 /i. Appendage, longer, 185 /i. Total length to tip of pcritheciura, 
220-300 fi. 
On Bemhidlum mexicanum Da]., B. loBvigatum Say, and many undetermined species; Maine 
to Washington and Mexico ; on Treclius cJiahjheus Mann., California ; on Bemhidlum litforale Pz., 
B.lunatum Biiit., B.fasciolatiim 'Duit, B. punctulatum Drap., B. ohsolctum Dcj., B. Andrem 
Sch., B.Jlaynmulatim Clair., 5. decorum Pz., B.femoratum Sturm, B. hipunctatum Duft., Euroi^c. 
The species of Laboulbenia wliich occur on members of the genus Bembidium arc in need of 
further study than I have been able to give them; and snicc they arc very apt to occur in a 
ratlier imperfect condition, it is a matter of some diiiiculty to classify any considerable amount 
of material that has been obtained from this source. From my own materials 1 have selected 
this form to represent the present species ; since, although it is not at all certain that it is the 
only one which Peyritsch included under this name, it is certainly one of the forms that he 
had before him in drawing his figures. It is characterized by its stout outer appendage, which 
may be quite simple, or may produce a small group of short, stout branches above its third cell. 
The two figures represent typical specimens, the one (fig. 2) from B. mexicanum collected in 
Mexico, the otlier from B. kevigatum from Kansas. Specimens in my possession from B. 
Andrea.^ taken m Austria, and from an undetermined species from the Province of Quebec col- 
lected by Dr. Richards, do not differ in any respect from the form which is everywhere com- 
mon on various species of this beetle. Certain forms occur, nevertheless, which seem to somo 
extent intermediate between this species and that subsequently described as L.pedicillata, which 
may a so have been seen by Peyritsch and confused by him with L. vulgaris. That he had no 
^eiy clistmct Idea of the distinguishing characters of his species is indicated by his assertion 
that he had observed it on the staphylinid beetle Deleasfer dichrous, which is most improbable. 
wo species last mentioned are readily separated by the relation in position in either case 
be ween the insertion cell and the base of the perithecium, indicated in the figures, even if 
Thet 
other moi 
thn.l '■ ""''"™"' 'l'^«'"««»'»' I'ko tI,D charactor of tl,e appendages and the form of the peri- 
h .,„ were not ava, able for this purpose. Tl,e figures given in the present instance are not 
^e,3 satisfactory, the form of the perithecium not being well shown. 
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