Isoetes panamensis, Maxon & C. V. Morton, Ann. Missouri Bot. Gard.

Kessler, Michael & Smith, Alan R., 2018, Prodromus of a fern flora for Bolivia. IV. Isoëtaceae, Phytotaxa 344 (1), pp. 83-86 : 85

publication ID

https://doi.org/ 10.11646/phytotaxa.344.1.12

DOI

https://doi.org/10.5281/zenodo.13720902

persistent identifier

https://treatment.plazi.org/id/03D8917C-FF8E-FFAE-0FD8-A873FCE8FB64

treatment provided by

Felipe

scientific name

Isoetes panamensis
status

 

Isoëtes panamensis Maxon & C.V.Morton, Ann. Missouri Bot. Gard. View in CoL 26(4): 272. 1939.

Range:— Western Guatemala to Panama; coastal Ecuador and Peru; interior Brazil, Paraguay, and Bolivia (CO, LP).

Ecology:— Locally common; submerged aquatic and seasonally emergent in fluctuating or ephemeral water bodies such as pools, streams, river banks, and marshes, mostly on muddy ground, sometimes among floating vegetation; to 500 m.

Notes:— Velum rudimentary; megaspores 0.38–0.58 mm in diameter, baculate; microspores 27–40 μm long, smooth, sparsely echinate or papillate; 2 n =44 ( Costa Rica). Throughout its extensive but disjunct range, the megaspores of this species are variable in shape, size, and distribution of the baculi on the megaspores, and microspore ornamentation also varies; more than one taxon may be involved.

A presumably undescribed species of Isoëtes is known from eastern Santa Cruz (Abbott 16383, MO). It has shorter (ca. 15–20 cm long) and thicker leaves than I. panamensis .

Kingdom

Plantae

Phylum

Tracheophyta

Class

Lycopodiopsida

Order

Isoetales

Family

Isoetaceae

Genus

Isoetes

Loc

Isoetes panamensis

Kessler, Michael & Smith, Alan R. 2018
2018
Loc

Isoëtes panamensis Maxon & C.V.Morton, Ann. Missouri Bot. Gard.

Maxon & C. V. Morton 1939: 272
1939
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF