DICOTYLEDON OUS PLANTS. 41 



cyme-like axillary clusters, which are often grouped into 

 terminal spikes or racemes. Calyx tubular, usually 2-lipped, 

 persistent. Corolla usually 2-lipped. Stamens 4 (2 long and 

 2 short) or only 2. Ovary free, with 4 deep lobes, which 

 surround the base of the style. Fruit consisting of 4 nutlets, 

 ripening inside the base of the calyx. 



I. NEPETA, CATNIP, GROUND IVY. 



Calyx tubular, 5-toothed, corolla-tube narrow below, wid- 

 ened in the throat ; corolla 2-lipped, the upper lip notched, 

 the lower 3-lobed, with the middle lobe largest. Stamens 4, 

 rising inside the upper lip. Perennial herbs. 



(N. Glechom.a), Grodjs'd Ivy, Gill-over-thk-ghouxd, Creep- 

 ing Charley, Cro« -victuals, Robin-runaway. Creeping in 

 damp places ; leaves roundish kidney-shaped and erenate ; corolla 

 bluish purple, three times as long as the calyx. 



II. BRUNELLA, SELF-HEAL. 



Calyx tubular-bell-shaped, somewhat lO-ribbed, upper lip 

 broad 3-toothed, the teeth short, lower lip with 2 longer 

 teeth. Upper lip of the corolla upright, arched, and entire, 

 the lower spreading, reflexed, fringed, and 3-cleft. Stamens 

 4, reaching up under the upper lip, with the tips of the fila- 

 ments 2-toothed, only one tooth anther-bearing. Perennials, 

 with stems simple or nearly so, and sessile, 3-flowered 

 flower-clusters in the axils of kidney-shaped bracts, the 

 whole forming a spike or head. 



(B. vulgaris), Self-heal, Heal-all, CAErEXTEK-wEED. 

 Leaves with petioles, ovate-oblong, either eutii'e or toothed, often 

 somewhat hairy ; corolla usually blue or bluish, somewhat longer 

 than the brown-pm'ple calyx. 



III. LAMIUM, DEAD NETTLE. 



Calyx tubular-bell-shaped, 6-veined, with 5 awl-pointed 

 teeth of nearly equal length. Corolla with dilated throat, 

 upper lip arched, middle lobe of the lower lip notdied, the 



