Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Torrendiella species known from Nothofagus

Species Substrate Geographic distribution
T. andina fallen leaves of N. betuloides and N. dombeyi South America
T. brevisetosa fallen leaves of N. menziesii New Zealand
T. cannibalensis fallen leaves of N. menziesii New Zealand
T. dingleyae fallen leaves of N. solandri var. cliffortioides, N. truncata, N. menziesii, N. fusca New Zealand
T. grisea fallen leaves of N. dombeyi South America
T. madsenii fallen wood of Nothofagus spp. Australia, New Zealand, South America
Torrendiella sp. fallen leaves of N. cunninghamii Australia

Key to the Nothofagus-inhabiting Torrendiella species

1. On wood T. madsenii
1. On leaves 2
2. Setae with swollen, clavate apex, pale brown T. grisea
2. Setae with rounded, undifferentiated apex or acute apex, brown to dark brown 3
3. Ascospores symmetrical, broad elliptic-fusoid, 11.5 – 15.5 µm long; asci 7.5 – 9 µm wide T. dingleyae
3. Ascospores asymmetrical, flattened one side, narrow elliptic-fusoid, more than 15.5 µm long; asci 9 – 15 µm wide 4
4. Apothecia more or less sessile; ascospores 6 – 7.5 µm wide; ascus apical pore with indistinct amyloid reaction T. brevisetosa
4. Apothecia stipitate to short-stipitate; ascospores 3.5 – 6 µm wide; ascus apical pore with intense amyloid reaction 5
5. Apothecia 0.3 – 0.8 mm diam., short-stipitate; setae more or less rounded at apex; outer excipular layer hyaline to pale brown, cells often with narrow, divaricating elements; gelatinous central excipular layer poorly developed, more or less confined to the stipe T. cannibalensis
5. Apothecia 0.6 – 2 mm diam., long-stipitate; setae more or less acute at apex; outer excipular layer brown to dark brown, cells lacking divaricating elements; gelatinous central excipular layer well-developed, extending up sides of receptacle T. andina