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Published In: Exotic Flora 1: 56, pl. 56. 1823. (Exot. Fl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 7/9/2009)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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3. Ophioglossum petiolatum Hook. (stalked adder's tongue) Pl. 10d; Map 49

Stems short-cylindrical, sometimes slightly thickened. Leaves mostly 2–4 per stem, 5–20 cm long. Vegetative portion flat or somewhat concave, but not folded longitudinally, sessile to short-stalked, ovate, the base cuneate to truncate, the tip acute, not sharply pointed. Veins all about the same thickness, forming a simple network, the areoles not enclosing thinner networks of veins. Fertile portion 1–7 times as long as the sterile portion. 2n=960. April–June.

Known from a single locality in Pemiscot County (southeastern U.S., south to South America, West Indies, Asia, Pacific Islands). Disturbed lawns in sandy soil.

This species is at the northern edge of its range in Missouri. It was first reported for the state by Thomas et al. (1974), and should be searched for elsewhere in southeastern Missouri.

 


 

 
 
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