Class XIV. DIDYNAMIA. 493 
** Calyx i-fid. 
1310. Hosta. Cal. obsoletely 2-lipped, 4-toothe4 Corolla ringent, with the middle segment of the lower lip 
large, emarginate. Drupe with a 4.celled, 4-seeded nut. 
1311. Gmelina. Cal. about 4-toothed. Cor. 4-fid, campanulate. Two of the anthers 2-parted, 2-simple. 
Drupe baccate. Putamen bony, 4-celled. Cells 1-seeded, the lower sterile. 
1312. Lantana. Flowers capitate. Cal. obsoletely 4-toothed. Limb of corolla 4-fid, with an open orifice. 
Stigma hooked backwards. Drupes heaped, with a 2-celIed smooth nut. 
1313. Aloysia. Calyx deeply 4-cleft. Corolla tubular, 4-lobed. Stigma emarginate. Stamens 4, perfect. 
Seeds two. 
1314. Lippia. Flowers capitate. Cal. 4-toothed, roundish, erect, compressed, membranous. Corolla 4-fid, 
funnel-shaped. Drupe dry, 1-seeded, thin, covered by the calyx. Nuts two, 1-seeded. 
1315. Melampyrum. Capsule 2-celled. Seeds 2, gibbous, polished. 
*** Calyx 5-fid. 
1316. Selago. Cal. 5-fid. Tube of corolla filiform. Limb nearly equal. Capsule simple or 2-lobed, each 
lobe with a seed. 
1317. Vitex. Cal. 5-toothed. Limb of cor. 5-6-fid. Drupe 1-seeded, with a 4-celIed nut. 
1318. Cornutia. Cal. 5-toothed. Stamens longer than corolla. Style very long. Berry 1-seeded. 
1319. Zapania. Flowers capitate. Cal. 5-toothed. Cor. 6-fid. Stigma peltate, capitate, oblique. Fruit 
covered, bladdery, enclosing two seeds. 
1320. Priva. Cal. inflated, 5-toothed. Cor. a little longer than the tube of calyx, contracted at orifice. 
Drupe covered by the calyx. Nuts tvw o, 2-celled, 2-seeded. Stamens 2-4. 
1321. Spielmannia. Cal. 5-fid. Limb of cor. 5-fid, the orifice closed by hairs. Stigma hooked. Drupe with 
a 2-celled warted nut. 
1323. Verbena. Cal. 5-fid. Cor. funnel-shaped, with an incurved tube, and an unequal 5-fid limb. Stamens 
4, fertile. Fruit bladdery, covered, withering. Seeds 4. 
1323. Avicennia. Cal. 5-parted. Cor. 2-lipped : the upper lip square. Caps, coriaceous, rhomboid, 1-seeded. 
Seed germinating within the capsule. 
1324. Caldasia. Cal. tubular, 5-toothed, Cor. hypocrateriform, nearly equal. Filaments inserted in top of 
tube. Caps. 3-celled, 3-seeded, 3-valved. Seeds elliptical. 
1325. Clerodendrum. Cal. 5-fid, campanulate. Corolla with a filiform tube and a 5-parted equal limb. 
Stamens very long, projecting from between the segments of corolla. Drupe 4-seeded, with a 1-celled nut. 
1326. Volkameria. Cal. 5-fid. Cor. with 1-sided segments. Drupe 2-seeded. Nuts 2-celled, with 1-seeded 
cells. 
1327. Holmskioldia. Cal. colored, very large, campanulate, spreading, with a nearly entire limb a little 
shorter than the ringent corolla. 
1328. Petrcea. Cal. 5-parted, very large, colored. Corolla rotate. Caps. 2-celled, 2-seeded in the bottom of 
the calyx. Seeds solitary. 
1329. Citharexylum. Cal. 5-toothed, campanulate. Corolla funnel-shaped, rotate. Segments villous, above 
equal. Drupe 2-seeded. Nuts 2-celled. 
1330. Duranta. Cal. 5-fid, superior. Drupe 4-seeded, covered by the calyx. Nut 4-2-celled, 2-seeded, 
1331. Pedalium. Cal. 5-parted. Cor. tubular, ringent, with a 5-cleft limb. Filaments hairy at base. An- 
thers in pairs, forming a cross. Nut corky, with spiny angles. Seeds 2, with an arillus. 
1332. Myoporum. Cal. 5-parted. Corolla campanulate, with a spreading nearly equal 5-parted limb. Drupe 
1- 2-sceded, with 2-celled nuts. 
1333. Stenochilus. Cal. 5-parted. Cor. ringent : the upper lip erect, half 4-cleft : lower undivided, narrow, 
deflexed. Stamens didynamous, exserted. Ovary 4-celled, with 1-seeded cells. Stigma blunt, undivided. 
Drupe berried, 4-celled. Seeds solitary. 
1334. Bontia. Cal. 5-parted. Cor. 2-lipped, with an oblong tube : the lower lip 3-parted, revolute. Drupe 
ovate, 1-seeded, oblique at end. 
D, Filaments 4. Capsule or berry many-seeded. Seeds small, attached to a central receptacle. 
* Calyx bifid. 
1335. Orobanche. Cal. of 2-lobed lateral leaflets. Corolla ringeiit. Capsule 1-celIed, 2-valved, many-seeded. 
Gland at the base of the ovary. 
1336. Crescentia. Cal. 2-parted, equal. Corolla gibbous. Berry stalked, 1-celled, many-seeded. Seeds im- 
mersed in pulp. 
1337. Castilleija. Cal. spathaceous ; the upper lip bifid, lower none. Cor. 2-lipped : the lower lip very short, 
trifid, with 2 glands between the segments. Caps. 2-celled. 
** Calyx trifid. 
1338. Halleria. Cal. 3 or 5-leaved. Cor. 4-fid, somewhat inflated. Berry 2.celled, many-seeded 
*** Calyx ^fid. 
1339. Lathrcea. Cal. 4-fid. A depressed gland at the base of the suture of the ovary. Capsule 1-celled. 
1340. Rhinanthus. Cal. 4-fid, ventricose. Cor. ringent, with the upper lip generally compressed. Capsule 
2- celled, blunt, compressed. 
1341. Bartsia. Cal. 4-lobed, emarginate, colored. Cor. smaller than the calyx : the upper lip longest. Cap- 
sule 2-celled. Seeds angular. 
1342. Euphrasia. Cal. cylindrical, 4-fid. Corolla 2-lipped : the upper lip bifid ; the lower 3-lobed, with bifid 
lobes. Lower anthers with spiny lobes. 
»*** Calyx 5-fid. 
1343. Antirrhinum. Cal. 5-leaved. Cor. not spurred, gibbous at base : the upper lip bifid, reflexed ; lower 
trifid, closed by the prominent palate. Caps, oblique at base, without valves, opening at the end by three 
pores. 
1344. Linaria. Cal. 5-parted, with the two lower segments remote. Cor. spurred, ringent : the orifice closed 
by the prominent palate. Caps, ovate 2-valved, opening at the end into 3-5-segments. 
1345. Anarrhinum. Cal. 5.1eaved. Cor. prominent at base, honey bearing : lower lip flat, without a promi- 
nent palate. Caps 2-celled, many-valved. 
1346. Nem£sia. Cal. 5-parted. Cor. spurred, with a prominent palate. Caps, compressed, trimcate, opening 
lengthwise in the middle, 2-celled, 2-valved. Seeds numerous, linear. 
1347. Maurandya. Cal. 5-parted. Cor. campanulate, unequal. Filaments callous at base. Caps. 2, united, 
half 5-valved at end. 
1348. Gerardia. Cal. 5-fid. Cor. 2-lipped, the lower lip 3-parted, with emarginate lobes : the middle 2-part- 
ed. Capsule 3-celled, splitting. , 
1349. Pedicularis. Cal. 5-fid. Cor. ringent. Capsule 2-celled, mucronate, oblique. Seeds truncated. Leaves 
multifid. 
1350. Erinus. Cal. S-leaved. Cor. with a 5-fid, equal limb. Lobes emarginate : the upper lip very short, re- 
flexed. Caps. 2-celled 
1351. Mimulus. Cal. prismatical, Swtoothed. Cor. ringent, with the upper lip folded back at the sides. 
Stigma thick. Capsule 2-celled, many-seeded. 
