OF SOUTH AUSTRALIA. 
237 
5 to 9.5 X 4 to (' iJ.. Hyphao wliite, tliic.k-wallotl, knol)by, vei'y irregularly bent, 
brandling at various angles, 5.5 to 11.5 /j.. Usually on diarreil stumps' or on 
the inside of burnt trunks, occasionally at the base of a stump ami extending 
over surrounding pine-needles, etc. South Australia — Mount Lofty, National 
Park, Kuitpo. New South Wales. April to July. 
871. Poria medulla-panis (Pers.) Ur. (L., medulUi, pith, crumb; yanis, 
bread). — Forming extensive, fairly sharply determinate, firmly adherent patches 
up to .80 X 5 cm. in size and 1 to 5 mm. tlr,ck, sometimes cracking on the surface. 
In colour Light Buff (xv.), or between this and Warm Buff (xv.), or Light Buff 
becoming warmer when bruised, or the surface white with a tinge of Light Buff 
with the context Warm Buff and becoming Warm Buff when bruiseil, when old 
with darker stains and often with a dark brown or scorched brown edge tending 
to be cracked, the surface in some eases turning yellowish or mustard colour on 
scratching or bruising and brownish when emulsified. The sterile edge may be 
narrow or more extensive, depending on the age, and in one case we have an 
extensive very thin white patch, 10 x 1.5 cm. in size, of sterile surface on which 
here and tliere very minute shallow pits are develo])ing whilst another branch 
collected at the same time had the pores well-develo])ed but in a thin layer. The 
pores are up to 3 mm. long, straight and shallow, or ol)lique, with very little 
context which is whitish and passes into the white mycelium penetrating the 
wood. The pore oilfices are very minute, about 3 to 4 in 1 mm., the dissepiments 
thin when growing obliquely, rounded and nearly the diameter of the pores when 
horizontal. The spores are abundant, sometimes forming most of the hymenial 
substance in teased scrapings, whitish or very slightly tinted, thick-walled, oval 
or ellii)tical, (i.5 to 9.5 x 5.2 to 7.5 /r. Jlyphae wliitish, irregular, sometimes 
varicose, sometimes colla])sed-looking, branching irregularly, l.H to 3.5 y thick. 
On dead branches and fallen wood. South Australia — Mount Lofty (on dead 
Banksui marginata Cav.), National Park, llindmarsh Abilley. New South Wales. 
Flinders Island, Bass Straits. New Zealand. Euro])e, etc. January to May, 
July to September. (Ihgure 52. Right.) 
372. Poria Wakefieldii Rodw. et Clel. (After Miss E. M. Wakefield, of the 
Royal Botanic Gardens, Kew). — White with a cinereous tint, becoming discoloured 
a dingy grey near the surface ))robably from commencing decay. The thickness 
is up to 5 mm., consisting chiefly of the jiores (3.5 mm. deep), beneath which is 
a thin tomentose whitish subiculum up to 1 mm. thick. The orifices are minute, 
U.K) to 0.25 mm., about 31 to (i in 1 mm., rather angular, the dissepiments thin 
,'ind acute or somewhat rounded. The hyphae are thick-walled, very irregular, 
sometimes curved or knobby, with the calibre varying in individual hyphae, 2.5 to 
7.5 p. thick, with smaller fragments of mycelium about 2 p tliick, with branches 
coming off irregularly, some at right angles and some at acute angles. New 
South Wales. September. 
373. Poria sviberassa Rodw. et (Tel. (L., .siibcras.vis, somewhat thick). — Forming 
adherent patches up to 7.5 x 4 cm., rather thick (2 to 5 mm.), Pale Pinkish Buff 
to Pinkish Buff (xxix.). Light Buff (xv.) or approaching Warm Buff (xv.), 
corky-tough, usually rather soft to the toucli, pores stratose, usually forming most 
of the substance, sometimes with a thin context hiyer. Pores' often oblique, 
orifices 4 to 7 in 1 mm., dissepiments rather thick, setulose. llyi)hae rather 
wavy and somewhat varicose, 2 to 3.5 p, usually about 2.5 p, spores not see?i. 
Tasmania. 
The species appioaches P. medulla panis Pers., and P. pulchclla Schw., which 
is sometimes considered a thin variety of the former (vide Bourdot et Galzin). 
It differs from Australian sjiecimens of P. medulla-panis in being usuallv rather 
soft to the touch and thicker, the pores more frequently oblique, tlie orific.ies 
reaching to a smaller size and tlie absence of the abundant oval spores of 
P. medulla-panis. 
374. Poria westraliensis Rodw. et Clel. { ll’estraliensM, Western Australian). — 
Forming shai|)ly defined patches, ,S.7 x 1.<S cm. or less, with edges separating 
from the substratum, nearly jneiid>ranous, witli a broad smooth sterile margin 
wluch is whitish with a slight buffv tint. On this the shallow pores develop, 
becoming near Wnuff Brown (xxix.), i-ather large, 21 to 3 in 1 mm., regular’ 
dissepiments tliin, not setulose. llyi)hao pallid, thick-walled, to 4,5 p. Spores 
not seen. Western Australia. 
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