Native & Naturalized Plants of the Carolinas & Georgia


2382

Fern/Fern ally
Perennial

Native to South Carolina & Georgia
Documented growing wild in GA - SC

Rare (an endemic)

Look for it in pools on granite flatrocks, per Weakley's Flora

map
To see a detailed map, click here

 

...Wet

LEAVES:
Deciduous
Simple
Leaves 2-ranked when young, whorled at maturity

FRUIT:
Spring/Summer/Fall

 

TO LEARN MORE about this plant, look it up in a good book!



Lycophytes: Isoetales

WEAKLEY'S FLORA (5/21/15):
Isoetes melanospora   FAMILY Isoetaceae

LESS THAN PLANTS NATIONAL DATABASE:
Isoetes melanospora   FAMILY Isoetaceae

LESS THAN VASCULAR FLORA OF THE CAROLINAS (1968) 005-01-001?:
Isoetes melanopoda   FAMILY Isoetaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933)
Isoetes melanospora

SYNONYMOUS WITH Georgia Quillworts (Musselman, 2001)
Isoetes melanospora

 

COMMON NAME:
Black-spored Quillwort


Click or hover over the thumbnails to see larger pictures.

image of Isoetes melanospora

Peter Schafran    psc_mel1

May    DeKalb County    GA

Stone Mountain

Isoetes submerged in pool.

image of Isoetes melanospora

Peter Schafran    psc_mel2

May    DeKalb County    GA

Stone Mountain

Isoetes submerged in pool.

image of Isoetes melanospora

Peter Schafran    psc_mel3

May    DeKalb County    GA

Stone Mountain

The name refers to the color of the megaspores, which are esp dark when wet, per Georgia Quillworts. Tipularia (Musselman, 2001).

image of Isoetes melanospora

Peter Schafran    psc_mel4

May    DeKalb County    GA

Stone Mountain

Scanning electron micrograph of megaspore proximal surface at 100X.

image of Isoetes melanospora

Peter Schafran    psc_mel5

May    DeKalb County    GA

Stone Mountain. Scanning electron micrograph of megaspore distal surface at 200X

Megaspores black, tuberculate, 280-440 micra in diameter, per Synopsis of Isoetes in the Southeastern United States. Castanea (Boom, 1982).