GARDEN BOTANY. 



Ixvii 



ers odorous, in some pleasant, others not so. The fruit is a berry-like drupe, 

 commonly sky-blue. Flowers in a depressed head or cluster. 



"L. Camara. Flowers deep yellow, turning first to orange, then to red. 



L. mixta. Flowers opening white, turning yellow, orange, and then red. 



L. nivca. Flowers white, pleasant-scented, unchanging. 



L. odorata. Not prickly, small-leaved ; flowers lilac-purple. 



4. Vitex Agnus-castus, CHASTE-TREE, with 5-7 lanceolate entire leaf- 

 lets, white underneath, and bluish flowers with the clusters spiked, stands only 

 at the South. 



V. incisa, which stands at the North (a native of N. China), has the leaf- 

 lets pinnatifid or incised, and the cymules peduncled and corymbose. 





ORDER LABIATJE. MINT FAMILY. 



Manual, p. 300. Most common Labiatae in gardens are already described in 

 the Manual. They have only to be indicated by a simpler key, and a few species 

 added. 



Stamens only 2 with anthers. 



Calyx 5-toothed : anther of 2 cells confluent end to end. Man. p. 309. MONARDA. 



Calyx 2-lipped : anther halved, i. e. with only one good cell, and 

 that borne on one end of a long connective, the other end bear- 

 ing a rudiment of the other cell or none at all. Man. p. 309. 1. SAL VIA. 

 Stamens 4 with anthers. 



Filaments decurved towards the lower lip or side of the corolla. 

 Flowers in an interrupted raceme : calyx deflexed after flowering. 2. OCIMUM. 

 Flowers in a virgate spike : calyx not deflexed : leaves hoary. . 3. LAVANDULA. 

 Filaments erect or ascending towards the upper side of the flower. 

 Corolla almost equally 4-lobed, small : calyx erect. Man. p. 303. MENTHA. 



Corolla 5-lobed, hardly 2-lipped : calyx nodding in fruit. . .4. PERILLA. 

 Corolla more or less strongly 2-lipped. 

 Upper or inner pair of stamens longer than the other pair. 

 Upper lip of corolla merely concave. . . Man. p. 311. NEPETA. 



Upper lip of corolla arched or hooded. . . Man. p. 318. PHLOMIS. 



Upper or inner pair of stamens shorter than the other pair. 

 Stamens diverging or parallel and distant, 



Long-exserted : calyx 15-nerved. . . Man. p. 304. HTSSOPUS. 



Short-exserted or included : calyx 10 - 13-nerved. 



Calyx naked in the throat : leaves linear. Man. p. 307. SATUREIA. 



Calyx hairy in the throat. 



Flowers surrounded by colored bracts. Man. p. 306. 6. ORIGANUM. 

 Flowers without conspicuous colored bracts. Man. p.306. 6. THYMUS. 

 Stamens above incurved under the upper lip. Man. p. 308. MELISSA. 



Stamens ascending parallel, approximate under the upper lip. 



Flowers in simple spikes, one to each bract. Man. p. 313. PHYSOSTEGIA. 



Flowers several in each cluster or half-whorl. 



Anthers included in the tube of the corolla Man. p. 315. MARRUBIUM. 



Anthers not included in the tube of the corolla, and 

 Opening transversely by 2 unequal valves, one of them 



ciliate Man. p. 316. GALEOPSIS. 



Opening lengthwise. 

 Corolla dilated at the throat : flowers not spiked, 



and the calyx-teeth not spiny. Man. p. 318. LAMIUM. 



