Pubescence of Winter Leaves
by Bob Harms  email-here

H. drummondii H.r. var. serpyllifolia H.r. var. reverchonii
Upper
surface
Lower
surface
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: leaf curved in upwards spreading
orientation: stem curved in downwards
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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