under 



52 CLASS XIY. ORDER I. 



Caltha. Calyx o : petals 5 to 9 : capsules numerous} 

 many-seeded : nectaries o : (styles variable in number.) 



Hepatica. Calyx 3-leaved : petals 6 to 9 : seed naked. 



Ranunculus. Calyx 5-leaved : petals 5, with claws 

 and a nectariferous pore or scale on the inside of each : 

 seeds numerous. 



Jldonis. Calyx 4 or 5-Ieavcd : petals 5 or more,, without 

 nectariferous pores : seeds awnless. 



CLASS XIV. DIDYNAMIA. 

 OKDER I. GYMXOSPERMIA. 



A. Cfl/^.r 5 -parted ivith the divisions or teeth nearly equal. 



Lamhim. Corol with the upper lip entire, vaulted $ 



dt-r lip 2-lobcd : throat with a tooth at each margin. 



Nepetti.- Calyx dry, striated : corol with a longish 

 tube, under lip with the middle division crenatc, throat 

 with a reflected margin * stamens approaching. 



Mentha* Corol nearly equal, 4-cleft : broadest divi- 

 sion emarginate : stamens erect, distant. 



Leonnrus. Calyx 5-angled, o -toothed, corol with the 

 upper lip villose, flat entire $ lower lip 3-parted, middle 

 division undivided. 



Glechoma. Calyx 5-cleft : each pair of anthers ap- 

 proaching so as to exhibit the form of a cross. 



B. Calyx 2-lipped. 



Trichostema. Corol with the upper lip falcate : the un- 

 der lip 3 -parted with the middle division small, oblong : 

 filaments very long-exsert, curved. 



Scutellaria. Calyx with an entire mouth, which is 

 closed with a lid after the corol falls out : tube of corol 

 bent. 



Origanum. Calyxes collected into a 4-sided strobile- 

 like cone, with broad intervening bracts : corol with the 

 upper lip erect, flat ; under lip 3-parted, divisions nearly 

 equal. 



'Thymus. Calyx with the throat closed with hairs : 

 rorol with the upper lip flat, emarginate ; lower lip lon- 

 ger. 



Prunella. Calyx with the upper lip dilated : filaments 

 2-forked with an anther on one of the points : stigma 2- 

 cleft. 



