422 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^. 
Cl< civ allied to R. Thalpii, but larger, with longer and more numerous appendages which nearly 
conceal the p< ri thecium. The septa of the axis are usually more or less deeply suffused. In one specimen 
these suffusions above form black bands, but the region is not visible in a majority of the specimens, being 
hidden by the appendages. 
Rhachomyces pilosellus (Robin) Thaxter. 
Scanty material of this species in poor condition was found in the Paris Collection, No. 176 on Lathor- 
Ilium JufrifH inir Fab. from France, and also on the same host var. apteraum in the Berlin collection 
from Europe. The specimens appear to correspond in all respects with those previously examined. 
Rhachomyces Aph^enopsis Thaxter. Plate XLV, figs. 12-14. 
Proc. Am. Acad. Arts and Sci., Vol. XLI, p. 314. July, 1905. 
IVrithecium but slightly inflated, hyaline, straight, the tip blunt symmetrical. Receptacle variable, 
h valine; the main axis consisting of about ten to fifteen hyaline cells, the two lowest larger and suffused 
with brown, the rest broader than long, and separated by somewhat oblique septa; the hyaline appendic- 
nlafe cells relatively large, and not concealed by the appendages, which are rich black brown, the lower 
ones, when unbroken, extending upward far beyond the tip of the perithecium and curved toward it: 
those arising about its base, and even below it from the inner cells of the appendiculate series, unlike the 
rest, erect, straight, consisting of a paler basal part, five to six septate, with constrictions at the septa, and 
a distal unicellular more or less elongate portion. Perithecium (not fully matured) about 85 X 25 /«. 
Receptacle 75-lC>r) x 15-18 ll. The longest appendages about 300-350 p.. 
( )n the elytra of Apkanopg ccrbems Diek., Ariege, France; Sharp Collection, Type, No. 1142; Berlin 
Museum, No. 877; Paris Museum, No. 193. 
I have found a few specimens of this species in all the collections mentioned, but none are fully 
matured and only the two figured have perithecia. The species is well characterized by the closely septate 
appendages about the base of the perithecium, and the long clear rich dark brown appendages of the 
usual type which arise from the axis and are as long near its base as near its summit. The species is most 
kypoganu 
i 
• % 
same locality. 
Rhachomyces hypog^us Thaxter. 
species 
thalmm obhngw Motsch, Carniola, and from the Berlin Museum on A. Bilimeki Sturm, from the Adela- 
l.urg Grotto No. 872: both, however, immature. Several small forms which are perhaps undeveloped 
mdmdua Is of tins species were also found in the Paris Museum on A. hirhts Sturm., No. 192, and Anoph- 
thalmia n. s. 
Rifachomyces stipitatus Thaxter. Plate XLIV, fiVs. 5-6. 
Proe. Am. Acad. Arts and Sci., Vol. XXXV, p. 438. April, 1900. 
tentnecnim pale straw-colored becoming tinged with brownish, much darker toward the tip; broadly 
s.d>us 1 f,um, usually sym.netneal, tapering from about the middle to the small blunt usually symmetrical, 
ban ly ddlerenfated, often hyaline tip; borne free on a stalk-cell which is concolorous, sometimes as long 
as the recep acle m other cases but slightly developed. Receptacle straw-colored, or faintly brownish 
al sugmatal marks; the main axis consisting of about fifteen to seventeen evils, the septa rather 
Z h v hi P ' r ,nSlStl T ° f abOUt tW ° t0 f ° Ur Cd,s > erect *»* >■•-: the cells of the secondary 
bl- cktl < lnI' C °7 0l0r0US 'f at °PP° site the -bbasal cell of the main axis bearing a long opaque 
^^2^7 T rV u d t0Ward ^ ^^ and oft - equalling it in length, oto similar 
otfme^TK ab ° Ve * bUt n0t f r ° m a " the loWer cells > ^°ing -re numerous through- 
ked Itm;,? 1 Ranees extending to or beyond the tip of the perithecium even in the long- 
1 f0rmS ' aSS ° C,ated tlm)U S hout "& snorter appendages and antheridia. Some of the individuals 
