LABIAT.E. (mint FAMILY.) 



611 



by two, tliickisli viilves. Seed by abortion 1, embryo large, destitute 

 of testa, geroiinating witliiii its pericarp, cotyledons large, folded 

 lengthwise, radicle inferior, the plumule enlarged before the fruit falls 

 — Perennial trees, with opposite, leathery leaves. 



A. ofliciiialis, L. 5 5 ShauraJi. Leaves oblong to elliptical or 

 obovate, entire, tapering into a short petiole, green at upper surface, 

 snowy white at lower. Cymes capitate, dense, three or less together 

 at the upper axils and tips of branches, short-peduncled ; flowers ses- 

 sile, each with a bract, and two, ovate bracteoles, which arc silky at 

 outer face and shorter than calyx ; corolla-lobes half-exserted, ovate, 

 ascending, glabrous at upper surface silky at lower : stigmas nearly 

 sessile — Arabia Petrcea to Egyptian Desert. 



Order LXXIX. JLABIAT^. (Mint Family.) 

 Herhs or shrubs^ with ^-angled stems, opposite orwho^^l- 

 ed, aromatic leaves, more or less 2-lipped, perfect floxoers, 

 didynamoxis or diandrous stamens, a deeply Globed ovary, 

 forming in frioit 4, seedlihe, l-seeded nutlets surrounding 

 the lase of the single 2-loled style, at the bottom of the per- 

 sistent calyx — Anthers 2-1-celled; filaments inserted on cor- 

 olla-tube. Nutlets smooth or slightly roughish, inserted bj 

 base (except in Ajuga and Teucrium). Albumen almost 0. 

 Embryo straight (except in Scutellaria). Flowers axillary, 

 chiefly in cymose clusters, these often aggregated in terminal 

 heads, spikes, or racemes. Foliage usually dotted with glands 

 containing a volatile, aromatic oil. 



J 



e J ( 



Fi";, 27C. («) Lateral view (ilCulv-v ;iml cuRilla d' /.(/n(/«);i <(///;»/^jifai//e, sliowing tlie 

 oblitiue calyx, hairy, hooded upper lip, and trilobed lower lip, of corolla. \J)^ Kront view of 

 the same, showins the didynainous stamens inserted on tiic tube, (c) Calyx and corolla of a 

 species of Scutellaria, (d) Longitudinal section ot calyx, showing the 4-lobed ovary and the 

 «tyle ascending from the middle. (^) Transverse section of one of its akenes. (/)Longitu- 

 dinal section of the same, (g) Stamen of a Salvia, slunving the cells of the anther, one fertile 

 and the other sterile, at the ends of a connective astride the filament. (A) Bilabiate calyx 

 and corolla of a Salvia, (t) Flower of a Teucrium, showing the campanulate calyx, and cor- 

 olla witli 5-lobed lower lip, and exserted longer pair of stamens. (;) Anthers of same. 



