THAXTER. — MONOGRAPH OF THE LABOULBENUCl B. 421 
to which such individuals must often be subject. A structure son., u I, at similar in nm*nron.v hai I, n 
Uun 
Rhachomtces Canariensis Thaxter. Plate XI. IV, tig*, i 2. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. Y.MS. April. I'lOO. 
Perithccium pale straw-colored, nearly straight, a median and .subtenninal well-defined broad lv- 
rounded ridge marking the transverse septa between the three lower tiers of uall-.-.l! the tip t:i| NT iiig 
rather abruptly, hyaline, the apex rounded. Receptacle rather slender, the l.asal and nihhnsul . 
relatively large, hyaline, the rest pale straw-colon. I. the main consisting of fifteen or \\\ n (•.•li- 
the upper five or six forming a free erect termination. The appendagea not numerous, appro*. .1, Iron n 
those about the base of the pcritheeium larger, distally blunt and hyaline, about two thirds as long at 
the perithccium. Perithecia 90-130 X 27-30 //. Receptacle 175-225 /t Appendages, ).> 1^ about 
100 fi. Total length to tip of perithccium 250-32") a. 
/?< 
I neriffe: Pari Mu- 
seum No. 184, on Treclius Axturiensis Le Br., Grottede Puerto de P mcs, Asturias. Berlin Museum 
on T. rotundipennis Duft., "Gastein." 
This small species, specimens of which from TenerifFe, fig. 1, ami the single sj>eeimen from "< ...-ft in 
arc illustrated in the accompanying plate, is well distinguished by the |>ale oolor of ii- apjwndagr . tin 
very prominent anthcridia, and the two successive ridges which are present in die perith* cium. 
to he rare, and only one or two specimens were found on each of the host above refem d to. 
Rhachomyces Thalpii Thaxter. Plate XLV, figs. f> 7. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 490. April, VMM. 
\l a|>|N7 
ir 
Perithccium hyaline or straw-colored, becoming faintly tinged with brown, slender, infl ed near die 
base; the distal half or less mostly curved away from the appeudagi . tapering gradually to the blunl 
undifferentiated apex. Keceptacle normally consisting of eleven cells superp< *<1 to form the main a\i> 
hyaline, their septa horizontal or but slightly oblique, the b al cell suhtriangular, tinged with r hlish 
brown; the cells of the secondary series hyaline and proportionately rather lar Ap|>en<la_ rather 
dense, almost opaque except the nearly or quite hyaline tip and inner margin; rather short, about four 
to six of those about the base of the perithccium much larger, longer, and Stouter, reaching om< what 
km omui 
shaped through the degeneration of the hyaline portion, the curved tips of tl« antheridia projecting r. her 
conspicuously. Perithecia 115-30 «. Total lenirth of receptacle 140 tt. l/mger ap]x-mlagos 00 jl 
fulus 
4 
size and differently shaped curved pcritheeium, the distal portion of which, eren in young sp >n> . 
is free above the longest aj)pendages. The appendages shout the base of the perithechtn arc i>. b. h 
fi 
and extending down the axi.s to the base. 
Rhachomyces Zcphii Thaxter. Plate XLV, figs. 10-11. 
Proc. Am. Acad. Arts and Set., Vol. XXXV. p. 436. April, V* 
distinguished and slightly inflated. 
col 
i 
rather Abruptly 
consi 
bel 
ages ncariy opaque 
stout appressed, not elongate, more or less swollen distally along the inner margin of the wbl.yal.ne up; 
eight to ten about the base of the pcritheeium longer and stouter. Pcr.thceia 1 10 1 10 X 25 ft \'«W>r 
appendages about 1 10-140 //. Total length to tip of pcritheeium 3.">0-4<M> ft. 
On Zupkium Mexicmum Chant., British Mu um (Biologia ( oil.). No. 713. Cordova, . i< 
