H. Crum et Le. Anderson, A DEVIANT EXPRESSION OF SPHAGNUM-TENERUM FROM THE VIRGINIA TIDEWATER AND THE DOMINICAN-REPUBLIC, The Bryologist, 97(3), 1994, pp. 280-283
Sphagnum tenerum var. virginicum, described from coastal Virginia and
the Dominican Republic, differs from var. tenerum in having branches i
n fascicles of 4-5 and pores consistently in the epidermal cells of st
ems.