D I 



DIDYMA Anthera [A/Sy.tt®^, getnhms, twins] 

 two upon each Jilamentum, as in the Ranunculus. 



DIDYNAMIA [A;?, bis, twice, & Avv«^,<?, 

 potaitia, power] Linnseus's fourteenth clafs, 

 comprehending thofe plants which produce her- 

 maphrodite flowers bearing one pl/tUlum, and 

 iourjiamina, two of which are long and two 

 fliort. Its claflical charafteriftics are thefe : 

 Calyx, Perianthium, monophyllous, erefl;, 

 tubulated, quinquefid, generally with unequal 

 fegmenrs, perfifting. Corolla, monopetalous, 

 ei'eft, whofe bafis is tubulated, and ferves the 

 purpofe o^ a neSIarium : the limbus is generally 

 ringent, its fupefior labium upright, the infe- 

 rior extended horizontally, trilid, the broadeft 

 lobe in the middle. Stamina, whofe filaments 

 are fubulate, inferted into the tube or the Corol- 

 la, and inclining towards its back : the inner- 

 moft are the fliorteft ; they are all parallel, and 

 feidom exceed the length of the Corolla. The 

 Jnthertc are generally hid under the fuperior /a- 

 hium of the Corolla, in pairs, refpedlively conni- 

 vent. PisTiLLUM, the Germen commonly a- 

 bove the Receptaculuw, a fingle filiform Stylus, 

 bent with the filamenta, and generally inclofed 

 within them, their fummits a little curved, 

 and ihe Jligma emarginate. Pzp.icarpium, 

 cither entirely wanting, or generally bilocular. 

 ' Seeds, 



