Isoetes pallida Hickey
Descripción
Rootstock bi- or trilobed; leaves ca. 30, ca. 25 cm long, pale toward bases, triangular in mid-length transection; velum covering less than 25% of each sporangium; sporangial walls unspotted; megaspores white, average 400–475 µm in diam., pustulate-tuberculate with girdle smooth; microspores light gray in mass, average 25–35 µm long, echinate; 2n=44 (Oax).A
Ejemplar revisado
Oax (Hickey & Hickey 962, UC). Camp (Novelo 598, MEXU).A
Elevación
100 mA
Ecología y Hábitat
Temporary pools and saturated soil in seasonally wet savanna, August–November.A
Tipo de vegetación
SabanaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Specimens from the Campeche (Novelo 598), originally annotated as Isoëtes cubana Engelm. ex Baker and I. jamaicensis Hickey, bear megaspores averaging 400 µm in diameter with the pustulate-tuberculate ornamentation of I. pallida.A