66 GAMOPETAL/E. KEY TO THE ORDERS. 
(aSyStamensedidynamous e IEEE ETE Verbenace:e. 
SStamens: equal. - er c eee steels ls IEEE Loganiacee. 
(in JMitrasaeme Ovary 2-celled, cells many-ovuled, stamens 5). 
(29) Aquatie herb, leaves floating, ovary l-ceelled. —........ Gentianace:e, 
(Limnanthemum). 
"Terrestrial. (30). 
(30) Herb with cauline leaves, or shrubs or trees. (31). 
iHerbwithwallmadicealdesvesqod e e EEEEEETT Plantaginese. 
(31) Ovary I-ecelled, ovules many, placenta parietal, undershrubs ...... 
E Eon e REUNIR Gesneracezs, (Jsanthera). 
Ovary 2- or more-celled. — (32). 
(32)4) Ovary 2-4-celled, ovules 4. — (53). 
83) Ovary 2-eelled, cells many-ovuled. (953a). 
7)Owvary 2-6-celled, cells 1-2 ovuled, shrubs or trees. (34). 
(39a) tylesc27 cesa s MEE Con oot TENSILE ES Hydrophyllace:e. 
Biyles?T.. dae settore EE P E Solanace:z. 
(33) GCorollamplatedyinabuds qe e dritte e mS III Convolvulacese. 
Gorollaslobessum riens 391. T ETTTERS Boragine:re. 
(94) Flowers bisexual. (35). 
Flowers unisexual or polygamous. (36). 
(35) Leaves simple. (354). 
Ieavesscompound-s cce TIERE Ampelide:, (Jeea). 
(950) Ovary-cells"-ovuledsg eR ne E I NIE Sapotaces. 
Ovary-cells more than 2-ovuled. ............e eee eee Styrace:. 
(96). :Petals contorted, sepals'aeerescent. ......:.- 25.5... Ebenaces. 
IPetals imbricate, eq eeeeiten cele eR TERT ETT Oleaces. 
(9T) Leafless herbs. (38). 
Leafy herbs, shrubs, or trees. — (40), 
(38) Stamens 4, didynamous, anthers 1-2-ecelled. (39). 
Stamens 2, anther-cells confluent. .............. Lentibulariace:e. 
(39) Ovary l-celled, placenta 2, parietal. .............- Orobanchace:e. 
Ovary 2-celled, placenta 2, axile, anthers 1-celled. Serophulariace:e, 
(Striga). 
