312 MONOGKArH OF THE LABOULBENIACE^. 
This species, although occurring on such a varietj of hosts, is very constant in its essential 
characters, and appears to be undoubtedly distinct from L. fiagellata and its near allies. Its 
general color, tlie shape of its perithecium, the olive coloration at the base of its outer appendage, 
and the blackened external branch of the latter, serve to distinguish it readily. It is allied to L. 
flagellata and L. Pterostiehi, and as already mentioned, may eventually prove to bo the form 
intended by Robin as the type of his L. Rougetii, although the data available for distinguishing 
this species would hardly lead one to unite the two. The specimens examined are from Greece 
and Central Europe. 
Laboulbenia elongata Thaxter. Plate I, figs. 32-39 ; Plate IT, figs. 5, 7, 8, 13-18 ; Plate 
XVI, figs. 1-14. 
Proc. Am. Acad. Arts and Sci. Vol. XXIV, p. 10 ; L. gignntea Istvauffi, Teriniisz. Fiiset. Vol. XVIII, 1895, p. 82, Plate 11. 
Perithecium nearly colorless or straw yellow to almost black-brown, blackened below the apex, 
liyaline about the pore, more or less evenly inflated, the ratlier small lip-cells turned slightly 
outward. Appendages very variable in form, size, and color; hyaline or yellowish to deep red 
brown, arising from an inner and an outer basal cell ; the outer bearing a single branch, rarely 
simple, usually once or twice branched ; the inner producing two brandies on either side, rarely 
simple, often many times successively branched forming a dense tuft ; the branches rigid and 
distally attenuated, or fiexuous, with bluntly rounded tips, slender or stout, rather closelvleptatc. 
Antheridia solitary, or borne in pairs laterally or terminallv, on sumetimes dennely' crowrlcd 
branchlets. Receptacle short and rather stout, or very elongate ; normal in form, hvnline or dis- 
tally suffused with brown. Spores, 60-100 X 5-8 /.. Perithecia, 110-240 x 
appendages, 180-750 ;t. Total length to tip of perithecium, 300-^00 fi (1200 u sa^Ui^(^m) 
35-05 it. Lontjcst 
P- extensicollis Sav, P 
s 
P. hkolor Lee, P. PustUus Lcc, P. dis.edu, Lcc, P 
(ficuniis IjCC, P 
Jloridayius Lee, P 
Ray, Mamo to F onda and California. On ColpoJes purrurlpen.h Chand., C. cceruleom,.rj;,u,tus 
Cl,aud., dupU. Bates a ^™f. Bates, C. pMlu» But., C. iucuUus Bat,.,, C. »phodroides 
Chaud., O cyanonotu. Chand., 0. tenuicornu Chand., Jlcxic. and Central America. On 
PWyo^. (.0 sp., Japan. On LimoMene, iPrutonychu,) ea^icola Sch., Platynu. rufi.ornis 
Goeze, Europe. On MacrochUus Mjuffalus Goeze, Liberia, Africa 1/ ' J' 
whilh thlT varvinV"™ "'^'f'- ^ ''''' ''"" "' 'P^^'»^- f'"'» -'•''™ l-^^ "f the world 
'r d^i^retr ' V ' '" °™ ""' ^'"' ''^■•^"'- '" '« '''-'*'-'• -'» -->■ imaginable 
rith which ™„?,r" , ""■ n '^''"""' '■*"™- '''■'^ '■''"-' of I-M^!l'»", given ^ Toy- 
iubcuy wnicn it most ncarlv resemhlp^ o»p „^ j^^ -i 11 i .,, , '^ ^ ' ^ j j 
be imnossible to dofnrn.,', \, '^'""^'f'' ^[^ so J^ad that, without a knowledge of the host, it would 
oe impossible to determine the species w th any certaintv rn rot , •/ 
drawn, would belong to a quite different type and is I'e i T f ', t,"' T""' ' ""T' 
of very different and undcscribcd form T !,' , . ,' t "'"'""'^•'^'"i' ""^ J^-'f? -^^''J'"™ 
abundantly associated Jt he .""es vZ ""''' "'■''" "'^' '''"'""='' """"'''"'' "''""■ 
i>avo never found a specimen orthoLrho:;'" ^^-blr '^^T"' '''"'' " ''""'''' ' 
ancer> is another question which only the e" mlio P '' ' """ '" ""''' "'"^ ^• 
i' UK e.\amination of European material can determine, as 
