broader sometimes
branching base, sometimes conjoined near the peridial wall, now and then
at irregular intervals inflated slightly or anon bulbose, roughened by
projecting spinules, one-third the diameter, brownish or yellow; spores
reddish-brown, faintly marked by reticulating bands over large part of
the surface, 5-5.5 mu.
This peculiar species looks at first very little like a myxomycete. The
stiff projecting hairs of the capillitium are hyphal in appearance and
under the lens recall the phycomycetes; but the spores and withal the
general structure seem to claim recognition here. Rostafinski was
inclined to make a trichia of it, because of the hair-like capillitium,
and markings on the threads, Massee found indistinct spiral markings
even, enough to suit at least the prototrichias. Mr. Lister would put it
near the tubifers. Father Torrend thinks of the dianemas, margaritas,
etc., because of simple capillitium attached above and below!
Spore-characters are probably the index most reliable, and the partial
reticulation suggests association with _Tubifera_ and for the present it
may find station there, as in the English monograph.
Rare. Collected three times: twice in Ceylon, once in Jamaica. By the
courtesy of Dr. Farlow, late lamented, we record the western specimens.
_D._ RETICULARIACEAE
Fructification aethalioid; the sporangia sometimes poorly defined,
intricately associated, borne on a common hypothallus and covered above
by a common cortex; the lateral walls variously perforate and
incomplete, form a pseudo-capillitium; spores umber or ochraceous.
=Key to the Genera of the Reticulariaceae=
_A._ Spores umber.
_a._ Sporangia wholly indeterminate, their walls much
consolidated below, fraying out above into
long, slender threads, 1. RETICULARIA
_b._ Sporangia bounded, more or less distinctly, by
broad perforate plates throughout 2. ENTERIDIUM
_B._ Spores ochraceous 3. DICTYDIAETHALIUM
=1. Reticularia= (_Bull._) _Rost._
1791. _Reticularia_ Bulliard, _Champ. de la France_, p. 95, in part.
1873. _Reticularia_ (Bulliard) Rost., _Versuch_, p. 6.
Plasmodium at first white, then pink, 'ashes of roses,' etc. Sporangia
wholly indeterminate or undefined, their walls represented (?) by a
spongy mass of so-called capillitium, consisting of membranous plates,
branching, anastomosing, v
|