J8SG.] 
A NEW GENUS OF MYXOMYCETES. 
123. JJiALONECTKiA TKUNCATA (Ell.) Am. Nat., February, 18S3, 
p. 194. N. A. F., 1332. On the inside of white cedar bark, stripped from 
the living tree and left lying on the ground. Newfield,N. J., Sept., 1882. 
Ferithecia gregarious, minute (one eighth to one sixth millim.), flesh- 
color, subglobose or ovate, the apex flattened into a circular, granular- 
roughened disk, with the edges lightly projecting ; ostiolum in the center 
of the disk, minute, papilliform, brown; asci sublanceolate, 3-5 x 5 
sporidia biseriate, oblong-fusiform, subhyaline, uniseptate and slightly 
constricted around the middle, 11—13 x 24—3 !>■. 
124. DialonectriA Uaibbleulaki^e (Flow. A Hark.) Trans. Cal. 
Acad. Sci., 1884, p. 26. On Umbellularia, California (Ilarkness, No. 2882). 
Ferithecia superficial, scattered, 200—230/^- in diam., globose, subhy¬ 
aline, with a pale tinge of flesh color, beset with a few hyaline, mycelial 
threads externally; ostiola obtuse ; asci clavate, oO x 10—15 ; sporidia 
hyaline, ovate, uniseptate, 10—12 x 5—8 !>■. 
(To be continued.) 
A NEW GENUS OF MYXOMYCETES. 
BY IIAROBD WINGATE, IMIILADEBBIIIA , BA. 
The following genus comes under the family Stemonitacem. 
ORTJIOTRICIIA, Wingate, nov. gen.— Sporangium globose; stipe 
elongated, entering the sporangium as a very short or obsolete columella 
and then dividing into a few branches at a sharp angle. These branches 
fork several times, thus forming a capillitium of straight threads. The 
last branches meet at the surface of sporangium at a very sharp angle by 
twos or threes, where they are joined together by small membranaceous 
plates. Wall of the sporangium, with the exception of the plates and 
a very small collar around the stipe, not apparent. 
Okthotriciia AiiCROCEPiiALA, Wingate, sp. nov.—Sporangia glo¬ 
bose, very variable in size, from one twelfth to one fourth of a millim. in 
diameter ; stipe elongated, brown or blackish at the base, growing lighter 
towards the top, more or less translucent, ten to thirty times the diameter 
of the sporangium in height, tapering, rugose, except at the upper part, 
where it more or less suddenly becomes a smooth 
* tilament, entering the sporangium as a very short, 
sometimes almost obsolete columella. It then 
divides into a few (sometimes only two) branches 
at a sharp angle. These branches fork several 
times, forming a very loose capillitium of straight 
threads, the last branches meeting at the surface 
of the sporangium by twos or threes at a very 
Oithotricha microcephaia, Wingate, sluii’p angle, vvlieie tlieii slightlj» tliickeiied ends 
are joined together by minute, membranaceous plates. Sporangium wall 
not apparent, except a slight collar around the stipe as it enters the 
sporangium ; spores brown in mass, very light-violet, almost colorless, 
under the microscope, perfectly smooth, 7—8 mikrm. in diameter. On 
i-olten logf^^^iiladelphia. Fa. 
