214 FOUNDATIONS OF BOTAN^X" 



II. BOUVARDIA, Salisb. 



Smooth perennials. Leaves lanceolate, thickish. Calyx 

 4-lobed, the divisions slender. Corolla with a long and nar- 

 row or rather trumpet-shaped tube and spreading 4-lobed limb. 

 Anthers 4, inserted in the throat of the corolla, almost sessile. 

 Stigmas 2. flat. Capsule globular, 2-celled, many-seeded. 

 Flowers dimorphous. 



1. B. triphylla, Salisb. Three-leaved Bouvardia. Somewhat 

 shrubby. Leaves nearly smooth, ovate or oblong-ovate, the lower 

 ones ill threes, the upper ones sometimes in pairs. Corolla scarlet 

 and slightly downy outside. 



2. B. leiantha, Benth. Downy-leaved Bouvardia. Leaves 

 rather downy. Corolla deep scarlet, smooth outside. 



Both species cultivated from Mexico ; in greenhouses. 



m. MITCHELLA, L. 



A pretty trailing evergreen herb. Leaves roundish-ovate, 

 petioled. Flowers fragrant, white or pinkish, dimorphous, 

 growing in pairs, joined by their ovaries. Calyx 4-toothed. 

 Corolla funnel-shaped, with the lobes bearded within. Sta- 

 mens 4, short. Style 1, stigmas 4, slender. Fruit double, 

 composed of the united ovaries, really a stone-fruit containing 

 8 seed-like bony nutlets, ripening into tasteless scarlet berries 

 which cling to the plant through the winter. 



1. M. repens, L. Partridge Berry, Squaw Vine, Two-eye 

 Berry. Common in dry woods, especially under evergreen conif- 

 erous trees. 



IV. GALIUM, L. 



Annual or perennial herbs ; stems slender, 4-angled. Leaves 

 appearing whorled. Flowers small, in axillary or terminal 

 cymes or panicles, perfect or rarely dioecious. Calyx-tube 

 short, the teeth minute or wanting. Corolla wheel-shaped, 

 3_4_lobed. Stamens 3-4, short. Ovary 2-celled, styles 2, 

 short, united below. Fruit 2, united, sometimes fleshy, 

 1-seeded carpels which do not split open.* 



1. G. Aparine, L. Goosegrass. Annual; stem weak, decum- 

 bent, sharply 4-angled and with backward pointing prickly hairs, 



