DicUptera. LABIAT^E. 5^9 



slender-petioled : racemes short and loose : bracts and bractlets deciduous : calyx- 

 lobes subulate : corolla dull red, narrow, an inch long ; the lips truncate : cells of 

 the anther nearly et[ual in size, the lower with a short blunt spur : capsule tomen- 

 tose, club-shaped, the stalk-like empty base longer than the seed-bearing portion. — 

 Bot. Sulph. 38. Jacohinia Californica, Nees in DC. Prodr. xi. 729. iSe7Hcof/raphis 

 Calif ornica, Gray in Bot. Mex. Bound. 125. 



Along the southeastern borders of the State {Fremont, Newberry, Tarry, &c.), in Arizona, an<l 

 through Lower California. Capillary style rather i^ersistent, at length separating by a joint above 

 the base. 



4. DICLIPTERA, Juss. 



Bracts a pair, valvately enclosing 1 to 3 llower-buds. Corolla tubular, bilabiate ; 

 the upper lip interior in the bud, flat or concave, emarginate or entire ; the lower 

 spreading, 3-toothed or lobed. Stamens 2 : anthers with 2 cells, one higher than 

 the other, both pointless. Capsule short, flattened contrary to the partition, 4-seeded, 

 the' base seedless and stalk-like : the strong processes that bear the seeds curving 

 upward and becoming hook-like at dehiscence. Seeds flat. — Mostly herbs ; with 6- 

 angled stems, broadish and petioled leaves, and either scattered or clustered flowers : 

 mainly tropical, two or three species reaching the United States. 



1. D. resupinata, Juss. N'early glabrous: stems slender, loosely branching: 

 leaves oblong or lanceolate, slender-petioled : peduncles scattered, bearing a pair of 

 cordate or rounded foliaceous bracts, and between them a single flower or rarely a 

 pair : corolla purplish, half an inch long. — Torr. Bot. Mex. Bound. 125. D. thlas- 

 pioides, ISTees in DC. 1. c. 474. 



California, No. 557, Coulter : but perhaps only in Arizona, where it abounds, as also in Lower 

 California, in the fonn of D. thlasjiioidcs ; so called because the flattened pair of bracts (3 to 5 

 lines in diameter), terminating a peduncle of about the same length, may be likened to the silicle 

 of a Thlaspi. In most species, when the flowers are in clusters, many of the corollas appear to 

 be reversed (resupinate), the 3-lobed lip seemingly the upper one as respects the main axis. 



Order LXXIII. LABIATiE. 



Herbs, or chiefly so, mostly aromatic, with square stems, opposite simple leaves 



and no stipules, bilabiate corolla, didynamous or diandrous stamens, and an ovary 



parted into 4 lobes around the single style, forming 1 -seeded seed-like nutlets in the 



bottom of the persistent calyx. — Flowers perfect. Calyx 3 - 5-toothed or cleft, or 



bilabiate. Upper lip of the corolla 2-lobed or entire ; the lower 3-cleft or parted 



(or in the first tribe as if 4 in the upper and one in the lower lip). Stamens on the 



tube of the corolla. Style 2-cleft at the apex, often unequally so, or one of the lobes 



obsolete : stigmas minute. Seed erect from the base of the nutlet, mostly without 



albumen. Embryo straight (except in Scutellaria) ; the radicle inferior. — Foliage 



mostly dotted with impressed glands, producing the volatile oil upon which depends 



the aroma and warm pungency of a large part of the order. Inflorescence axillarj', 



the flowers when clustered cymose, the cymes, clusters, &c., sometimes racemose or 



spicate at the upper portion of the stem or branches. 



A large order, found in all countries, but most abundant in warm-temperate regions. All the 

 ]ilants innocent, but some aromatic-pungent ; several used in medicine or for condiments ; others, 

 with brilliant blossoms, such as Mexican and Brazilian Sages, cultivated for ornament. Many 

 Old-World species, such as Marjoram, Savory, Thyme, several Mints, Cat-Miiit, Motherwort, kc, 

 are naturalized in the Atlantic States, but have not been met with on the Californian side. 



