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Huperzia ×protoporophila A. Haines. Phen: Jun-Sep. Hab: Rock outcrops and cliff bases. Dist: Known from Chimney Rock Park, Rutherford County, NC (the lowest elevation occurrence of H. appressa in NC), from Roan Mountain, Mitchell County, NC, and Grandfather Mountain, Avery County, NC.

ID notes: Expected at other cliff bases where the two parents are in proximity, this hybrid can be told from its parents by the presence of stomates on both surfaces of the leaf (unlike H. lucidula), and their marked lower density on the upper surface (unlike H. appressa). An additional useful character is the distribution of gemma-bearing branches: those of Huperzia appressa are abundantly distributed throughout the apical portion of mature plants, while those of the hybrid are confined to 1 or 2 pseudowhorls at the apex of annual growth (i.e., there are large gaps between the pseudowhorls of gemma-bearing branches).

Origin/Endemic status: Native

Other Comments: {not keyed}

Synonymy: = K3, K4, NE, Haines (2003a); = Huperzia appressa × lucidula; = n/a – RAB

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