392 
HANDBOOK OF 
8 . MYXOMYCETE.®. 
At first mucilaginous, flowing, motile, of variable form, forming 
plasmodia. In the state of fructification the plasmodium is 
divided into many immoveable fruits. Fruits either regular 
(peridia) or irregular (plasmodiocarp). Peridia sometimes con- 
fluent, forming a composite fruit (iEthalium). Spores endo- 
genous, free in the fruit or emitted in zoospores. Zoospores con- 
fluent, forming a motile plasmodium. 
Section 1. Pkiutriche.®. 
Wall of sporangium not incrusted with lime, capillitium absent, 
or formed from wall of sporangium. 
Sub-Section 1. Tubulinese. 
Wall of sporangium not perforated. 
Genus 1. TUBULINA. Pers. 
Scattered and regular, or irregular and forming a plasmodiocarp, 
or compacted together to form a naked or corticated Eethelium ; 
walls very thin, single, often iridescent, not perforated ; columella 
and capillitium absent. 
2032. Tubulina cylindrica. Bull. Jttfki. Mon. 220. Sacc. 
Syll. 1391. 
Sporangia cylindrical, rounded at the apex, gregarious, mostly 
crowded, standing at first on a plane, then convex hypothallus; 
mass of spores rusty-chestnut, or pale chestnut ; spores for three- 
fourths of their surface reticulated, the residue clad with scattered 
ridges and warts, 7-9 p diam. ; walls of the sporangium when 
quite mature beautifully iridescent. 
On rotten wood. Queensland. Tasmania. 
var. nitidissima. U«rA=Tubulina nitidissima. Berk. Linn. 
Journ. xviii., 387. Sacc. Syll. vn., 1394. 
Sporangia shining, golden-yellow. Spores pallid, globose. 
On Eucalyptus microlheca. Queensland. 
2033. Tubulina spuniarioidea. Cke. fy Mass. Mass. Mon. 
42.=Lieea spuniarioidea. Cke. <j- Mass. Grev. xvi., 74. 
iEthalium irregular, cinereous, cortex membranaceous, reticu- 
late with branched veins ; sporangia soon diffluent, capillitium 
obsolete. Spores rather large, spluerical, covered with rounded 
warts, 16-18 p, yellow. 
Running over twigs and on the ground. Victoria. (Fig. 344.) 
