Pubescence of Winter Leaves
by Bob Harms  email-here

Typical Leaf Surfaces

H. drummondii H.r. var. serpyllifolia H.r. var. reverchonii
longest hairs 0.45—0.55 mm 0.7—0.95 mm. 0.8—1.1 mm.
hair density
per sq. mm1
33—36 13—2224—31
orientation antrorsely strongly curved downward spreading or slightly curved slightly curved or spreading
1Counts based on the two samples for each taxon shown in the above table; first value is the low count for a lamina area; second value, the high count for an area including the margin.

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