Isoetes (Hickey, 1984)
publication ID |
https://doi.org/ 10.11646/phytotaxa.344.1.12 |
persistent identifier |
https://treatment.plazi.org/id/03D8917C-FF8D-FFAD-0FD8-AAABFA59FC64 |
treatment provided by |
Felipe |
scientific name |
Isoetes |
status |
|
Key to the Bolivian species of Isoëtes View in CoL
1 Plants of eastern lowlands <500 m; leaves 15–75 cm long ......................................................................................... I. panamensis View in CoL
– Plants of Andean habitats 2500–5200 m; leaves 3–25 cm long ....................................................................................................... 2
2 Rootstocks vertically elongate; leaves 50–200 per rootstock, 3–5(7.5) cm long; plants of cushion bogs ....................... I. andicola View in CoL
– Rootstocks globose; leaves <40 per rootstock, 4–25 cm long; plants of lakes, pools, streams, and marshes .................................. 3
3 Leaves turgid, stiffly erect; velum covering (20)70–100% of each sporangium ............................................................................. 4
– Leaves flaccid, lax to weakly erect; velum covering 0–80(100)% of each sporangium .................................................................. 5
4 Leaves to 20 per rootstock, 4–9 cm long, green, basally without dark pigmentation; rootstocks globose to slightly horizontally elongate; megaspores usually rugulate, rarely smooth ...................................................................................................... I. herzogii View in CoL
– Leaves to 40 per rootstock, 9–16 cm long, dark green, usually basally with dark brown to nearly sclerotic pigmentation; rootstocks globose to extensively horizontally elongate; megaspores smooth .................................................................................... I. lechleri View in CoL
5 Velum covering (5)60–80(100)% of each sporangium; gemmae absent; megaspores smooth to minutely tuberculate or cristate; microspores verrucate .................................................................................................................................................... I. boliviensis View in CoL
– Velum covering 0–10(40)% of each sporangium; gemmae present at leaf bases; megaspores tuberculate, rarely almost smooth or rugulate; microspores echinate ..................................................................................................................................... I. eshbaughii View in CoL
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