94 Solanaceae 



1. Corolla distinctly 2-lipped. Stamens 4, ascending 

 under upper lip, spreading above. 



Corolla-tube recurved. Upper lip concave. Melissa. 

 Corolla-tube almost straight. Upper lip flat. 



Satureia (Calamintha auct.). 



2. Corolla distinctly 2-lipped. Stamens 4, spreading. 

 Erect. Leaves broad. Calyx tubular. Origanum. 

 Procumbent. Leaves small. Calyx 2-lipped. 



Thymus. 



3. Corolla almost actinomorphic. Stamens spreading. 

 Fertile stamens 4. Mentha. 

 Two anterior stamens alone fertile. Lycopus. 



Suborder 4. SOLANINEAE. Flowers actinomorphic, 

 or more often zygomorphic, typically 5-merous. Stamens 

 5 or 4 or 2. Carpels rarely (5), mostly (2), usually 

 with 00 ovules. Fruit mostly capsular, never dehiscent 

 quite to the base. 



a. Vascular bundles bicollateral. (For y3 see p. 95.) 



Fam. 6. SOLANACEAE. Herbs or shrubs with 

 spiral leaves. Flowers terminal, single and often supra- 

 axillary, or in cymose, often supra-axillary, i?tfiorescences, 

 mostly 5-merous, hermaphrodite, actinomorphic, or 

 rarely zygomorphic. Corolla-lobes mostly folded in bud. 

 Stamens 5 (in zygomorphic flowers one may be stami- 

 nodal). Carpels (2), oblique. Ovules 00 on the septum. 

 Style I . Fruit a berry or capsule. Seeds with endosperm. 



Tribe i. Solaneae. Ovary 2-locular. 



Shrubs. Corolla salver-shaped. Stamens attached 

 above middle of corolla-tube. Fruit a berry. *Lycium. 



Herbs. Corolla campanulate. Stamens attached at 

 base of tube. Fruit a berry. Atropa. 



