Selliguea heterocarpa
Content
Morphology
3. Small forms with almost rounded, deeply sunken sori, often on almost linear fertile fronds (mainly from Sumatra and Peninsular Malaysia) have been described under the names Polypodium papilligerum and P. morgani; they also have been confused with Selliguea stenophylla.
2. Plants from Sumatra have more deeply sunken sori, on the upper surface forming broadly flat-topped ridges, with steep sides sharply set off from the flat top. This form has been described as Selliguea lima.
1 Selliguea heterocarpa has very often been confused with S. lateritia, with some consequential nomenclatural confusion. However, the two species are clearly distinct and differ in the following aspects:
The shape of the lamina base is in most cases characteristically tapering in S. heterocarpa, with a wedge-shaped part more or less sharply set off as some sort of bottleneck.
| heterocarpa | lateritia | |
| rhizome | short-creeping | elongated |
| rhizome scales | light dull brown, acumen wide, marginate | dark, often reddish, subulate, not marginate |
| frond base | tapering | not tapering |
| frond colour (dry) | dull brown | often tinged with red |
| coenosori | uninterrupted, deeply sunken | often interrupted, shallowly sunken |
The shape of the lamina base is in most cases characteristically tapering in S. heterocarpa, with a wedge-shaped part more or less sharply set off as some sort of bottleneck.
Citation
J. Sm. 1875: Hist. Fil.: 102
C. Presl 1851: Epim. Bot.: 146
Blume 1829: Fl. Javae Filic.: 125
Alderw. 1917: Malayan Ferns: 406
Alderw. 1917: Malayan Ferns: 384
Backer & Posth. 1939: Varenfl. Java: 198
Ching 1941 – In: Bull. Fan Mem. Inst. Biol.: 239
Kato & Price 1990 – In: Acta Phytotax. Geobot.: 72
Hovenkamp 1998 – In: Blumea: 68
Tardieu & C. Chr. 1941 – In: Fl. Indo-Chine: 490
Copel. 1960: Fern Fl. Philipp.: 509