Home Keys To Genera List Of Species Search Lemna Spirodela Wolffia Wolffiella Wayne's Word Wolffia borealis Dorsal view showing several budding plants showing pointed apex and pitted (punctate) surface. [See another photo of mixed population]. Wolffia borealis Dorsal view of budding flowering plant next to the tip of a sewing needle. The floral cavity contains a single pistil (with a circular, concave stigma) and one stamen. Note the pointed apex of this species. See Straight Pin & Sewing Needle Used In Wayne's Word Articles Return To The Lemnaceae Home Page Go To Keys To The Genera Of Lemnaceae Go To The List Of Species Of Lemnaceae Go To The List Of .GIF Images Of Lemnaceae Go To The WAYNE'S WORD Home Page All text material & images on these pages copyright © W.P. Armstrong