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Published In: Journal of the Arnold Arboretum 68(4): 410. 1987. (J. Arnold Arbor.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 9/1/2009)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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2. Lipocarpha drummondii (Nees) G.C. Tucker

Pl. 78 f, g; Map 297

Hemicarpha drummondii Nees

Hemicarpha micrantha (Vahl) Britton var. drummondii (Nees) Friedl.

Scirpus micranthus Vahl var. drummondii (Nees) Mohlenbr.

Spikelet scales 0.9–1.3 mm long, obovate to angular-elliptic, the tip short-tapered, bluntly pointed, appressed, much shorter than the main body of the scale. “Perianth” scales 0.5–0.8 mm long, about as long as the fruits, lanceolate, not lobed, usually with 3–5 veins.

Uncommon and widely scattered in the southern half of Missouri (eastern and southwestern U.S.). Sandbars and sandy margins of streams, rivers, and ponds; also in moist depressions of sand prairies.

Lipocarpha drummondii, which was described based upon collections made in the St. Louis area by Drummond in 1832, was considered at most a variety of L. micrantha by many earlier authors. Lawson (1973) studied the genus (as Hemicarpha) in Oklahoma and clarified the morphological basis for separating this species and L. aristulata from L. micrantha. Her findings were supported by those of Goetghebeur and Van den Borre (1989), who placed the relatively minor morphological characters separating these taxa into a global context, concluding that many species in the genus can be recognized only on the basis of such cryptic characters.

 
 


 

 
 
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