310 LABIATE. (MINT FAMILY.) 



ovate, coriaceous, indehiscent. Embryo large, naked, germinating within the 

 capsule. — Low evergreen trees, with extensively creeping roots, forming impen- 

 etrable thickets on the muddy shores of the sea. Leaves opposite, entire, smooth 

 above, hoary and velvety beneath. Flowers in dense heads, on axillary and 

 terminal peduncles. 



1. A. oblongifolia, Nutt. ? Tomentose throughout, except the upper 

 surface of the rigid oblong obtuse short-petioled leaves ; peduncles three together, 

 terminal, shorter than the leaves ; heads oval ; sepals and bracts orbicular ; co- 

 rolla tomentose on both sides ; style exserted. — Key West Oct. — Branches 

 terete. Leaves 2' -3' long. Peduncles 4-anglcd. Heads £' long. Corolla 

 3" long. 



2. A. tomentosa, Jacq. Leaves obovate-elliptical, very obtuse, tapering 

 into a petiole, smooth above, white-tomentose beneath ; spikes short, the lower 

 flowers mostly scattered ; corolla-lobes truncate, silky below, smooth above ; 

 stigma nearly sessile. — South Florida. Nuttull. — Leaves 3' long. Corolla 

 white. 



10. PHEYMA, L. Lopsked. 



Calyx tubular, bilabiate ; the upper lip of 3 bristle-pointed teeth ; the lower 

 shorter, 2-cleft. Corolla bilabiate; the upper lip notched, the lower longer, 3- 

 lobed. Stamens 4, didynamous, included. Style .-.lender; stigma 2-cleft. Fruit 

 oblong, pointed by the persistent style. — A perennial branching pubescent 

 herb, with opposite ovate or oblong coarsely-serrate long-petiolcd leaves, and 

 small opposite purplish flowers in a slender terminal spike. Fruit reflexed. 



1. P. leptostachya, L. — Rich shaded soil, Florida to Mississippi, and 

 northward. July and Aug. — Stem l°-3° high, tumid above the joints. 

 Leaves 3' - 5' Ions;. 



Order 94. LABIATE. (Mint Family.) 



Herbs or shrubs, with opposite 4-angled branches, and opposite exstip- 

 ulate leaves. Flowers opposite, solitary, or oftener in close axillary Bpiked 

 or capitate cymes (whorls). Calyx 3- 10-cleft or toothed. Corolla inure 

 or less bilabiate, 4-5-lobed. Stamens inserted on the tube of the corolla, 

 diandrous or didynamous. Ovary 4-cleft or 4-parted, the lobes surround- 

 ing the base of the single style. Ovule solitary, erect, anatropous. Fruit 

 of 1-4 one-seeded outlets. Albumen scarce or none. Embryo straight 



or (in Scutellaria) curved. Radicle short, inferior. — Plants commonly 

 dotted with minute glands, which are filled with an aromatic volatile oil. 



Synopsis. 



Tribe I. OC'IMOIDE.'K. — st.imcn« 4, dldynamoui . the lower pnir longer, reclining an 

 the town lobs of the corolla, anthi in 9 oelled. Nutlet! tmooth, diatlnct. 



1. 00IM1TM. Dpptr lobe "f the oalya broad, deenrrent Lobeeof the corolla nearly equal 



2. II Yl* lis. Calyx-teeth naarlj equaL Lowed lobe "i the corolla longeet, lawattti bent 



downward. 



