| Place | Rain (24h) | Sun | Humidity Hum. | Wind | |
| Loading... | 0.8in | 918umol | 64% | 4mph | |
| Loading... | 1.2in | 12umol | 84% | 9mph | |
| Loading... | 0in | 18umol | 81% | 11mph | |
Caia
1990Summary
Caia is a genus of small fossil plants of Late Silurian age (around 430 to 420 million years ago). The diagnostic characters are naked parallel-sided axes branching isotomously, terminating in vertically elongate sporangia (spore-forming organs) which bear spinous emergences particularly at the distal ends. Spores are trilete and retusoid. The only known species is from Hereford, England. Cladistic analysis suggests that the genus may belong to the Horneophytopsida, a class of the polysporangiophytes, as it lacks vascular tissue and has branched stems bearing sporangia. For the cladogram, see the Horneophytopsida article....read more on Wikipedia.
1 Caia species found:
Climate
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Natural Habitat
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Traditional Uses
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