OF SOUTH AUSTKAUIA. 
345 
Family 2. Arcyriaceae. — Capillitium a network of tubular threads branching 
at wide angles, smooth or thickened with cogs, half rings (rings in Aroyria 
annulifern), spines, or warts (capillitium often scanty and of fiee threads in 
Ferichaena cortioalis and P. (fuadrata) . 
Family .'1. Margaritaceae.^ — Capillitium consisting of solid threads, either 
coiled and hairdike or nearly straight and attached to the sporangium-wall, 
simple or branching at acute angles. 
FAMILY PHYSARACEAE. 
“Deposits of lime in minute round granules more or less aggregated, included 
in the sporang-iuni-wall and in vesicular expansions -of the capillitium (lime- 
knots), except in Biderma and Phynarimi where there are no lime-knots, and in 
Biaehca, in which the lime is confined to the stalk and columella and is sometimes 
in the form of rounded nodules. In this family and also in Bidymkweac, the 
stalk of tlie sporangium is developed as an open tube, through which protoplasm 
passes to form the young swelling sporangium; later, the walls of the stalk 
contract in folds, often tuiclosing refuse matter.” — Lister. 
BADHAMIA Berkeley. 
(After Rev. 0. D. Badham, M.D., 180(5-1857, the Myciologist.) 
“ Sporangia stalked, sessile, or forming plasmodioearps, Sporangmm-wall 
single, with included lime granules. Capillitium consisting of a coarse network 
charged with gianules of lime (sometimes constricted here and there into narrow 
hyaline threads) . Spores clustered or free, warted, reticulated, or nearly 
smooth.” — Lister. 
571. Badhamia foUicola Lister (L., folium, a leaf; colo, 1 inhabit). — ^“Plas- 
modium orange. Sporangia subglobose, 0.5 to 1 mm. diameter, iridescent-grey, 
sessile and crowded, or standing singly on slender pale yellowish-browm stalks 0.2 
to 0.5 mm. long. Capillitium a network of slender strands wdth white lime- 
deposits. Spores free, sometimes showing a slight tendency to adhere in loose 
clu.sters, violet brown, minutely spinulose, 8 to 11 y..’ ’ — Lister. South Australia^ — 
Bright orange yellow when immature, turning dark grey, on grass, twigs, etc.. 
Mount Lofty. June. 
PHYSAEUM Pers. 
(Gr., physa, a bubble, from the appearance of the sporangium.) 
“Sporangia stalked, sessile or forming plasmodioearps. Sporangium -wall either 
single, or consisting of tw'o more or less separable layers, with deposits of minute 
rounded lime-granules distributed in loose or dense 'clusters or Ciompacted into a 
crust. Stalk membranous, tubular (except in P. penetrale in which the stalk is 
solid and translucent), wrinkled with longitudinal folds, either translucent, or 
opaque with deposits of lime or refuse matter in the wall-substance or in the 
cavity of the tube. Capillitium foirniug a network of hyaline threads with 
vesicular expansions containing calcareous deposits (lime-knots), occasionalh', in 
weak forms, without such deposits.” — Lister. 
572. Physarum compressum Alb. et Schw. (L., compresms, compressed). — 
“Plasmodium w'hite. Total height 1 to 1.5 mm. Sporangia reniforni or obovoid, 
compressed, erect, splitting along the ridge, stalked, sessile or forming 
plasmodioearps, scattered, clustere<l or confluent, white or grey, rugose or closely 
spotted with white; sporangium-wall mend)ianous, colourless or purplish below, 
including dense clusters of white lime-granules. Stalk stout, furnowed, black from 
contained refuse matter, or brownish or white from deposits of lime in the wall. 
Capillitium a close network with numerous rounded white lime-knots, varying in 
shape and size, and connected by rather short hyaline threads. Spores dark 
purplish brown, more or less spinulose or echiiiulate, 9^ to 14 y diameter. On 
dead leaves, twigs, straw, etc.” — Lister. South Australia. — Recorded (Miss 
Lister) . 
FULIGO Haller. 
(L., fuligo, soot.) 
‘ ‘ Sporangia elongated, branching and interw-oven, combined to form a pulvinate 
aethaliium, the outer layer of sporangia often barren and forming a cortex 
charged with deposits of lime-granules and without spores. Capillitium with few 
or many lime-knots. ’ ’ — Lister. 
