Lycophytes: Isoetales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Isoetes melanospora
FAMILY
Isoetaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Isoetes melanospora
FAMILY
Isoetaceae
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Isoetes melanospora
INCLUDED WITHIN Flora of North America
Isoetes melanospora
SYNONYMOUS WITH Georgia Quillworts (Musselman, 2001)
Isoetes melanospora
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 005-01-001?:
Isoetes melanopoda FAMILY Isoetaceae
SYNONYMOUS WITH Ferns of the Southeastern States (Small, 1938)
Isoetes melanospora
COMMON NAME:
Black-spored Quillwort
To see larger pictures, click or hover over the thumbnails.
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Peter Schafran psc_mel1
May DeKalb County GA
Stone Mountain
Isoetes submerged in pool.
)
Peter Schafran psc_mel2
May DeKalb County GA
Stone Mountain
Isoetes submerged in pool.
)
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 (Musselman, 2001).
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Peter Schafran psc_mel4
May DeKalb County GA
Stone Mountain
Scanning electron micrograph of megaspore proximal surface at 100X.
)
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 (Boom, 1982).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Isoetes melanospora
FAMILY
Isoetaceae
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Isoetes melanospora
FAMILY
Isoetaceae
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Isoetes melanospora
INCLUDED WITHIN
Flora of North America
Isoetes melanospora
SYNONYMOUS WITH
Georgia Quillworts (Musselman, 2001)
Isoetes melanospora
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 005-01-001?:
Isoetes melanopoda
FAMILY
Isoetaceae
SYNONYMOUS WITH
Ferns of the Southeastern States (Small, 1938)
Isoetes melanospora
2382
Fern/Fern ally
Perennial
Habitat: In pools on granite flatrocks, per Weakley's Flora
Native to Georgia
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
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!
- Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986) p238
- Guide to the Plants of Granite Outcrops (Murdy & Carter, 2000) p92
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p173
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