274 THAXTER. — MONOGRAPH OF THE LABOULBENIACEjE. 
I* 
position, whether seen from the right or from the left would have the appearance seen in fig. 15, in which 
the necks of the antheridia, toward the median line, are shown partly in optical section running obliquely 
upward. All the antheridia open by longer or shorter necks into a median cavity, as is shown in fig. 18 
Which is ;i not quite median optical section. This cavity seems to be single, and from it the antherozoids 
make their escaj>e by a common aperture between the mouth colls, which as is Monoicomyces, are cut 
off from the third or upper tier of the main appendage, and which may later grow up into appendages as 
ia shown in fig. 1 _'. The somewhat dumbbell-shaped bulge of the upper tier-cells is somewhat exaggerated 
in fig. 15, which is somewhat confusing in that it combines a surface view with some of the appearances 
Men in optical section. The nature of the central cavity, whether a cell-cavity or an intercellular space, 
m determined in this or the preceding genus. This antheridium is the most highly developed 
organ of the kind in the whole group of Laboulbeniales there being perhaps seventy-five or more functional 
antheridia) cells in each antheridium, but in the other species of the genus it is much less complicated; 
although, as far as can be determined from the insufficient material, the type is the same in all three. 
Ei -moxoicomyces Papuanus Thaxter. Plate XXXVII, figs. 11-18. 
Troc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 22. June, 1901. 
Nearly or quite hyaline. Basal cell of the receptacle small, usually triangular; the subbasal cell 
terminating ,„ a short appendage, distinguished by a dark basal septum, and sometimes once-branched. 
I he ferUle branch not differentiated from the receptacle, consisting of three, rarely two cells similar to the 
sub msal cell, obliquely superposed; the lowest bearing normally a closely approximated pair of short, 
hyaline or faintly brownish, erect, sterile appendages, similar to that of the subbasal cell; the middle cell 
smaller, be 
The 
anthendia rather stout, broader distally; the stalk-cell small and short; the antheridial cells very numer- 
terminal 
Perithecium 
rather long and sometimes slender; the venter inflated; the distal portion tapering gradually and sym- 
vat ion 
ele- 
long as the perithecium; 
ir i it , . > VV1UU1U IIiU1 ^ man iiuii an JUiiu ila uie niiiuuciuin 
( ™ ™?r ^.i^ 1 ^" f ™ * .--■ *~ ^ w i 3 ., re* 
80-120 x 32-40 
pendages 35 X 18 a. 
Antheridia including stalk-cell and without ap- 
1 50-290 
^fi!SLi " ! mal !r Ie 0XyidUS " Ralum ' NeW Pom - ania - Berlin Museum, No. 1011. 
the East Indies. 
un 
I he sterile appendages of the fertile branch, although they appear to be solitary when 
side, are in reality paired, exactly film tW« n t M^^ l! r™_ _ . • i ~n „* 
the primary appendage is spinose as shown i'n fig. 13. 
Eumonoicomyces Californicus Thaxter. 
The terminal cell of 
I'roc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 22. June,' 1901." 
9- 
,, , ™*' ~« ana °ci., Vol. XXXVII, p. 22. June 1901 
with *Tk bl iVu'rrr i" f^l habit - BaSal CCU 0f the "^P*"* short, stout, geniculate, 
*** 
rT'rr";" uume ■» wmcn w dark brown and bea 
brown below, becoming hyaline distally. The fad. Z 
bearing a sterile appendage faWlL^h ♦ ^ SUpCr P° Sed cells "^ to the subbasal cell : the lowest 
antheridium ™A lL !_£ f ™* ter ™ates the receptacle; the middle «dl mimllv bearing an 
appendages, Th 
dian constriction 
Antheridium short-stalked, with a more 
and 
f-rv lnn«. k — "iiiauon oi the cells which bear the terminal 
fafcrt tt **? ndin 8 bey ° nd the ti P of the Perithecium. Perithecium 
inflated, the much shorter neck-like *-*.! — :- !iL-i- .k^s— :.u~i *h» 
