THAXTER. MONOGRAPH OF THE LABOULBKN 1ACJ E. 115 
KAINOMYCES Thaxter. 
Proc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 41. June, 1001. 
Receptacle broad and flattened; consisting of a single basal cell and typical foot, above which Hi 
successive cells become variably divided by longitudinal septa into transverse cell-rows or tiers: a distal 
appendiculate portion more or less definitely distinguished and consisting of superpoft d cells, the lowest 
of which alone become longitudinally divided, all producing laterally antheridial (?) branches: several 
of the tiers below this appendiculate portion growing out laterally at right angles to the main axis of the 
receptacle, on one or both sides, to form indeterminate peritheeial branches consisting of u]>erpai I i lis 
and terminated by solitary perithecia. The perithelium of peculiar form, with six wall-cells in ea< 
eel Is in each row 
form of a conic 
ciated in the type with a peculiar appendage inserted close beside it and shaped like a duck's bill. 
It has proved impossible from an examination of the material available of this extraordinary form, 
ermine 
and Euzodiomyces, although the resemblance which the single species bears to these genera may pro 
Tl 
ture in the species of the two last mentioned genera as well as the so-called main appendage of ( \ ratom 
and its nearest allies. 
be 
and its allies which, however, differ in possessing a few-celled receptacle. 
The perithecia in the Type are extremely peculiar, both from their form and their two curious ap- 
pendages, the smaller of which is evidently the indurated base of the triehogyne, and on account of their 
short stout form and the numerous members which compose the rows of wall-cells. The imleterniinat 
the perithecia have no parallel in any other genus, and although they may be called fertil 
_ rr „i to represent stalk-cells which are distally subject to active intercalary division. Hoi 
such a modification should be of advantage, it is difficult to see, since the growth of this branch yarnes 
the triehogyne far away from the assumed region of sperm-cell formation. The fact that the penthecw 
appear frequently to abort owing to lack of fertilization, would indicate that this relation is on the con- 
trary a disadvantage as compared with the conditions usually observed, in which the triehogyne is nnsely 
associated with the sperm-cell producing structures. 
cellular stalks of 
branches, appear to represent 
Katxomyces Isomali Thaxter. Plate LXXI, figs. 20 22. 
^ a™ UoH Art* and Sri .. Vol. XXXVII, p. 45. June, I90L 
rery broad, often 
much narrower: the cells above the basal cell becoming broader and flattened, and soon dmded longi- 
tudinally by one or more septa, nearly hyaline and broadly edged wholly or in part I* ov, - *|* ,-ial lv «,. 
the posterior side, with contrasting brownish black, which may involve the whole of ll.c oell, « «*p1 h 
all but the uppermost tiers. 
above, and sometimes involving 
free portion curving upward, 
an uui uie uppermost tiers, jtctiuicuuh uiaiiuao *_•_-* v - * * - \ n ,, ,.„«,! 
and consisting of from abont twelve to thirty-five supposed hyaline eells, winch are men- or 1, . lat u , 
nsoally separated by slight constrictions, the distal one similar to the others and fo lowed , ,„, • h lo b, 
basal cells of the perittcinm. Pcithecium becoming tinged with pale ^J^n^nW 
stont and broadly elliptical, often not distinguished from its bas.l cells; the doUl end a r .pd, m ■ . 
the po re subtended by a tooth-like outgrowth, the persistent base of the £<*«™'^^ ^ 
paler than an appendage beside it, which bears a slight resemblance to a due. Ml, , ■ - 
somewhat narrower diL.ly and pale tipped, broader toward ****.+-* » SZ^^ 
and hyaline. Spores about 30 X 3.5 p.. 
age, which measures 28-32 
80X40-50, 
[i 100-253 «. Ke. pta.-le ISO 220 X 40 60 
50-400 
Antheridial branches about 50 p. Total length to tip of per.thee.um .ou- * «£ 
On Isomalus Conradti Fauvel. Derema, Usambara, East Afnca. Berhn Museum, N<* 
