HYP 



OR, BOTANICAL DICTIONARY. 



H Y F 



about two inches long, of a lucid green on the upper surface, 

 and gray underneath, with many transverse veins. Flowers 

 terminating in small clusters, each on a short peduncle; cali- 

 cine segments divided almost to the bottom, obtuse, deep pur- 

 ple; petals large, obtuse, bright yellow, concave; germen ovate. 

 It continues in flower from March to September. Native of 

 China. It may be propagated by slips from the root, or by 

 laying down the branches. If by slips, they should be planted 

 in the same spring on a moderate hot-bed ; the layers should be 

 made at the same time to take root by autumn, when they may 

 be transplanted into pots, and sheltered under a frame in winter. 

 In spring, part of these may be set in a warm border, and the 

 others continued in pots to be screened in winter. 

 **** Styles united. 



58. Hypericum Ameenum. Terminal flowers subsolitary, 

 sessile ; leaflets of the calix ovate, acuminate ; petals deflex, 

 longer than the stamina; styles united together, of the length 

 of the stamina. This elegant species grows to the height of 

 about two feet or more. Every branchlet has from one to 

 three large flowers, of a bright golden yellow; the petals turn 

 downwards, and leave the large crown of the stamina in an 

 upright situation, which, with the beautiful red ovate germen 

 in the centre, gives the flower a particularly pleasing appear- 

 ance. Native of South Carolina and Georgia. 



59. Hypericum Glaucum. Branches cylindrical ; leaves 

 oblong, cordate; leaves of the calix ovate, acute, longer than 

 the petals; stamina equal to the petals; styles united together; 

 flowers large. Native of Florida. 



60. Hypericum Densiflorum. Plant very branchy; little 

 branches somewhat cylindrical; leaves linear-lanceolate; sta- 

 mina and styles united together, and shorter than the petals; 

 flowers in very abundant and close panicles. Found on the 

 ridges and in the savannas of the Virginian mountains. 



61. Hypericum Galioides. Branchlets tetragonal; leaves 

 linear, sessile, revolute on the margin. About two feet high 

 when in flower. Found from New Jersey to Carolina, in 

 moist sandy places near rivulets. 



62. Hypericum Triplinerve. Plant erect, somewhat 

 branchy; leaves linear; flowers racemose-panicuiated ; corolla 

 unequal ; calices acute. It has pale yellow flowers. Found 

 upon the banks of the Ohio. 



63. Hypericum Sphserocarpum. Plant erect, very gla- 

 brous ; leaves oblong; panicles naked, dichotomous ; styles 

 three, united or distinct ; capsules globose. Native of Ken- 

 tucky, New Jersey, &c. 



64. Hypericum Procumbens. Leaves linear; leaflets of 

 the calix oblong, lanceolate, acute ; stamina shorter than 

 the corolla ; styles united ; calix as large as the corolla.; 

 Native of the dry sunny hills of Kentucky. 



Hyphydra; a genus of the class Monoecia, order Gynan- 

 dria. GENERIC CHARACTER. Male Flowers. Calix: 

 perianth one-leafed, three-parted ; lobes obovate, concave, 

 curved in at top, smooth. Corolla : none. Stamina : fila- 

 menta six, capillary, long, inserted above the germen at the 

 corners; antherae roundish. Pistil: germen empty, inflated, 

 membranaceous, hexagonal, truncate at top ; style capillary, 

 the length of the stamina; stigma none. Female Flowers. 

 Calix : none. Corolla : none. Stamina : none. Pistil : 

 germen roundish, with three streaks ; style triangular; stig- 

 mas three, acute. Pericarp: capsule membranaceous, one- 

 celled, three-valved. Seed : single, ovate, striated. ESSEN- 

 TIAL CHARACTER. Male. Calix : one-leafed, three-parted. 

 Corolla: none. Stamina: six, inserted above the germen. 

 Female. Calix and Corolla : none. Style: triangular, with 

 three stigmas. Capsule : one-celled, three-valved. Seed : 

 single. The only known species is, 



1. Hyphydra Fluviatilis. Stems and branches slender; 

 leaves alternate, lo-ng, narrow, lanceolate, smooth, acuminate, 

 marked with lines, ciliate, embracing. Some of the stems 

 are erect, others decumbent, the last of which throw out 

 roots; flowers in capitate bundles, each composed of a male 

 flower, involved in a long sharp bracte, ciliate at the edge, 

 and a female flower included with three bractes of the same 

 form : they are axillary, and on a slender peduncle. This 

 little plant is a native of Guiana, and grows three or four 

 feet under water, flowering in February. 



Hypnum; a genus of the class Cryptogamia, order Musci. 

 GENF.HIC CHARACTER. Capsule: oblong; peristomium 

 double ; outer with sixteen broadish teeth ; inner membrana- 

 eeous, equal, laciniated ; segments broadish, with capillary 

 ones interposed. Males: gemmaceous on different plants. 

 Or thus. Peduncle : from a lateral tubercle, fenced with 

 scales; capsule outer fringed with sixteen teeth. Male: a 

 bud, generally on a different plant, withering. This is a very 

 numerous genus of Mosses, which has been thrown into seven 

 divisions by Dr. Withering, in order to facilitate the investiga- 

 tion of the species. His arrangement contains seventy species. 

 Hudson's Flora Anglica, forty; and there are also fifty species 

 in the fourteenth edition of the Systema Vegetabilium, besides 

 the new species discovered by Dickson, &c. 



Hypochosris ; a genus of the class Syngenesia, order Poly- 

 gamia jEqualis. GENERIC CHARACTER. Calix : common 

 roundish, imbricated, ventricose at the base ; scales lanceo- 

 late, acute. Corolla: compound imbricated, uniform; corol- 

 lets hermaphrodite, equal, numerous; proper one-petalled, 

 ligulate, linear, truncate, five-toothed. Stamina : filamenta 

 five, capillary, very short : antheree cylindrical, tubular. 

 Pistil: germen ovate; style filiform, the length of the sta- 

 mina; stigmas two, reflex. Pericarp: none; the calix con- 

 verging, globular, acuminate. Seeds: solitary, oblong; down 

 feathered, stipitate, Receptacle: chaffy; chaffs lanceolate- 

 lineav, the length of the seeds. Observe. In the third and 

 fifth species the seeds of the disk have a stipitate down, but 

 in those of the ray it is sessile. ESSENTIAL CHARACTER. 

 Calix: subimbricate. Down: feathered. Receptacle: chaffy. 

 The species are, 



1. Hypochoeris Helvetica ; One-lowered Hypochavis, 

 -Stem simple, leafy, one-flowered; leaves lanceolate, toothed. 



Root perennial, almost fusiform, thickish, somewhat woody, 

 sometimes divided, dark brown on the outside, white within, 

 milky, putting up one, sometimes two or three stems, among 

 abundance of radical leaves; flowers very large, from erect 

 spreading ; corollets numerous, long, deep yellow, five- 

 toothed, with yellowish-white villose hairs at the base. 

 Native of the mountains of Carinthia, Dauphiny, &c. 



2. Hypochreris Maculata ; Spotted Hypochoeris. Stem 

 almost naked; branch solitary; leaves ovate-oblong, entire, 

 toothed. Root thick and long, abounding with milky juice, 

 as does the rest of the plant. The flower opens at six in the 

 morning, and closes at four in the afternoon ; seeds wrinkled. 

 The leaves are boiled in Smoland, and eaten like cabbage. 

 The country people believe the plant to be a cure for tetters, 

 and other cutaneous eruptions, possibly on account of its 

 spotted leaves; which, though bitter, are eaten greedily by 

 ruminating animals. It flowers in July, is perennial, and a 

 native of many parts of Europe. Though not common in 

 England, it is found on the Gogmagog hills and Newmarket 

 heath, in Cambridgeshire; on Bernack-heath in Northamp- 

 tonshire; and about Malham Cove, Cartmell Wells, and near 

 Settle, in Yorkshire. 



3. Hypochoeris Glabra; Smooth Hypochosris. Leaves shin- 

 ing; flowers small. Root annual, the thickness of a crow- 



