Amphicarpum purshii Kunth.—a and 6, Staminate spikelets; ¢, floret 
he het ai i a fertile spikelet from one sof the underground bre branches. One other 
species from Florida is illustrated by figure 33 in Bul. 7 
21. AMPHICARPUM Kunth. Rey. Gram. I: 28. 1835. asanregs (by abor- 
i tion) | unisexual, Lethaia head staminate in a narrow Tminal panicle e, the 
of the culm and cestogamovs Glumes 3, awnless, _— unequal, the Ist and 
the fertile spikelets firmer in texture and 
Stamens 3. Styles distinct; -plumose. 
me penser J _ glume and palea. Erect 
