Biology:Isoetes acadiensis
| Isoetes acadiensis | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Order: | Isoetales |
| Family: | Isoetaceae |
| Genus: | Isoetes |
| Species: | I. acadiensis
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| Binomial name | |
| Isoetes acadiensis Kott
| |
Isoetes acadiensis, the Acadian quillwort is a species of quillwort in the Isoetaceae family described by Kott in 1981.[1] It can be found along the shores of lakes, ponds, and rivers in Newfoundland, Nova Scotia, and New Brunswick, as well as in the American states Maine, Massachusetts , and New Hampshire.[2] It has a similar distribution to that of I. tuckermanii. It bears 9 to 35 mostly recurved leaves, each 5–21 cm long. The leaves are usually dark green, though can occasionally be tinged with red. The sporangium can be up to five millimeters long and 3 millimeters in length, covered one sixth to one third by the velum. The spherical megaspores are 400-570 micrometers in diameter, and bear smooth ridges. The kidney shaped microspores are 25 to 30 micrometers long.[2] It was originally believed to be a member of Isoetes hieroglyphica because of their similar megaspore structure.
References
- ↑ "Isoetes acadiensis". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=ISAC. Retrieved 25 May 2015.
- ↑ 2.0 2.1 Cody, William; Britton, Donald (1989). Ferns and Fern Allies of Canada. Agriculture Canada. https://archive.org/details/fernsfernallieso0000cody.
Wikidata ☰ Q17023028 entry
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