384 NETTLE FAMILY. 



T. nepetaef6lia, Cav. Erect or very slightly twining, bearing stinging 

 hairs ; leaves ovate- or triangular-lanceolate, cordate or truncate at the 

 base ; stamens 3-5. Va., S. 



* * Plant twining ; leaves (except the uppermost) long-stalked. 



T. macrocarpa, Willd. Leaves ovate and acuminate, deeply cordate, 

 serrate. Ky., S. 



9. STILLINGIA. (Named for Dr. B. Stillingfleet.) Very smooth 

 plants, only S.; flowering all summer. 



* Herb ; leaves serrulate. 



S. sylvatica, Linn. QUEEN'S DELIGHT. Dry soil, Va., S. and W.; 

 l-3 high, clustered from a woody root ; leaves crowded, almost sessile, 

 varying from obovate to lance-linear, serrulate ; stamens 2. 



* * Shrubby ; leaves entire. 



S. ligustrlna, Michx. River swamps from N. Car., S.; 6-12high; 

 leaves lance-obovate or oblong ; spikes short ; stamens mostly 3. 



S. sebifera, Michx. TALLOW TREE of China, planted S. Car. and S.; 

 tree 20-40 high ; leaves rhombic-ovate, long-petioled; stamens 2; seeds 

 white, yielding a useful vegetable tallow or wax. 



10. BUXUS, BOX. (Ancient Latin, from the Greek name of the 

 Box Tree.) 



B. sempervirens, Linn. TREE Box, and its more common var. NANA, 

 the DWARF Box, with much smaller leaves, from the Mediterranean, are 

 planted N., chiefly for borders, especially the Dwarf Box. 



11. FACHYSANDRA. (Greek: thick stamens.) 11 



P. prociimbens, Michx. Rocky woods, W. slope of the Alleghanies, 

 from Ky., S., and in some gardens ; developing its copious spikes from 

 the base of the short procumbent densely tufted stems, in early spring. 



12. PHYTiLANTHUS. (Greek: leaf, blossom: the flowers in some 

 species being borne on dilated, leaf -like branches.) 



P. Caroline'nsis, Walt. A low and slender plant, growing in gravelly 

 soils from Penn., S. and W. ; leaves short-stalked, obovate or oval ; flow- 

 ers generally 2 in each axil, 1 staminate, 1 fertile, both almost sessile. 



CV. URTICACE.fi, NETTLE FAMILY. 



This family, taken in the largest sense, includes very various 

 apetalous plants, with monoecious or dioecious flowers (except 

 in the Elm Subfamily), having a distinct calyx free from the 

 1-seeded (but sometimes 2-celled) fruit. Stamens as many as 

 the lobes of the calyx and opposite them, or sometimes fewer. 

 Inner bark generally tough. Leaves with stipules, which are 

 sometimes early deciduous. 



1. ELM SUBFAMILY. Trees, the juice not milky. Leaves 

 alternate, 2-ranked, simple; stipules small and falling early. 



