272 THAXTER. — MONOGRAPH OF THE LABOULBENIACE.E. 
Monok omyces St. Helfa t ;E Thaxter. Plate, XXXVI, figs. 8-9. 
Pr.»r. Am. Acad. Arts and Sci., Vol. XXXV, p. 413. April, 1900. 
Pale yellowish or straw-colored. Receptacle consisting of a triangular basal cell, and a squarish or 
roundish subbasal cell which bears a small distal coll with a short terminal appendage separated from it 
by a constricted blackish septum; two to four branches arise from the subbasal cell, normally fertile 
aid consisting of from two to five, usually three, superposed cells which are commonly somewhat inflated 
di tally, more so on one side, an upgrowth from which becomes separated so as to form a prominent small 
cell which lies close againsl the base of the axis-cell next above and is simple or usually longitudinally 
former 
con 
ptcuou&ly blackened septum; the basal cell of this appendage usually blackened externally or often 
wholly opaque the subbasal cell blackened externally about its characteristically geniculate base, its 
terminal portion erect suffused with brown, or hyaline, and either terminating the appendage or followed 
by two or three hyaline cells. Perithecium symmetrically inflated, slightly distinguished from the basal 
cells, the tip small straight truncate tapering but slightly and abruptly distinguished. The antheridium 
usually single on the fertile branch, replacing the characteristic sterile appendage at the base of the stalk- 
cell of the perithecium, relatively small, its stalk-cells and those of the second tier about equal; the an- 
theridium proper about as large as the basal part and hardly broader, its terminal cells developing, as in 
the other species, long often flexuous hyaline upgrowths. Spores 38 X 3.5 ft. Perithecia 100-120 X 
40- fs n. The stalk 34-50 X 25-27 p. Appendages of fertile branch 50-90 X 5 ft. Sterile part of re- 
50-50 
250-435 
Helena. On 
alufaceij 
and 1171. 
Sharp 
pecies 
spring directly bom the subbasal cell of the receptacle. The sterile appendages of these branches are 
very p, uluw in ap|H'arance and arc not unlike those of M. IsmtoMA » *™,.i M „W.,.h „„„.«,„, .„ K. It* 
nearest ally. 
Moxoicoim is Leitochiri Thaxter. Plate, XXXIV, figs. 39-40. 
Proc. Am. Acad. Arts and Sci., Vol. XLf, p. 304. July, 1905. 
r-...u.., 1 ..«n. imy, i»vo. 
llccptacle consisting „ a mam axis of superposed cells, usually long and slender, normally simple, 
,,-,,„„. ,.nce to .several tones branched, the whole structure apparently a branch from the subbasal 
•■ "I a small pnmary m, ,,,acle: the axis somewhat similar to that of Rhachmmjces , consisting of a 
■ ■ ■» «f s„| „.rpos„l ells vanable in number (about twelve to twenty-five), each of which bears on one 
I or Ci ", , iT I ",' " ' S "' ie f' * Pair ° f Simp ' e C - Vli,ulrical fen '-« lled appendages, which become 
II I"!! I TT U "*** * by **■ *■* assod ^ -<• VT~U charaetcris- 
«r ■ Is , axl' S ',',' y S "!' aratCd JUS ' MaW ™' h Se P' um » f the ^ «* W region in the 
I™ 1 1 m "I " , ' r " ,ed,n ? *"«**««% like a not,., or tooth: the celb of the axis 
fusion,;, ..ruTe ^TZT, 1™ "** *"- *■"** -'" W-kish'-brown suf- 
eiuu, by aniridia ZSL kJZaLT ^ '"^ ^ '"" ^'^ """ "* peri ' h "- 
«d usuallv terminated l,v t ,' Z , ' ? W«djge8 ,n general a, arancc when viewed laterally, 
terminating the main lj T^^l^ aPP ? da f ° f no ^ length. Perithecium solitary, 
symmetrical 
faintly yellowish, straight, slightly inflated, nearly 
r\ .%%.,.,- xl 11 - — ~« * 
25 fi. 
appen 
250-800 ft, the axis about 18-20 
Tota 1 
70-90 X 18- 
