Stemonitis herbatica
Pk.
Description:
SPORANGIA: Sporangia clustered, in scattered tufts, cylindric, obtuse, stipitate or sometimes nearly sessile, natural brown or army-brown fading to avellaneous.

STALK: short, 3-7 mm. tall; stipe fuscous or jet-black, only slightly expanded below.

HYPOTHALLUS:
scanty or none.

COLUMELLA: lessening upward, sometimes attaining the apex of the sporangium, sometimes dissolved in capillitial threads some distance below.

CAPILLITIUM:
Of rich brown threads forming the usual inner network of medium density, with many wide expanded nodes, the surface net made up of delicate, almost colourless threads surrounding small polygonal meshes.
SPORES: spore-mass ferruginous; by transmitted light very pale, brownish, minutely warted, 7-9 µm.

PLASMODIUM: white to pale yellow.
HABITAT: On living leaves, sometimes also on rotten wood or debris

DISTRIBUTION: Cosmopolitan, known from Auckland and only.
Macro images:
Stemonitis herbatica
Scale bar
Scale= 1.2 mm.
 
Stemonitis
Scale bar
Scale= 1 mm.
 
Stemonitis
Scale bar
Scale= 1.2 mm.
 
Hidden Forest
Slime Moulds