104 HIERACIUM-HYACINTHUS. 



UIERACIUM. 17—1. {Cichoracecn.) [From Aierajr, a hawk.] 



veno'sum, (vein-leaf hawkweed, y. Ju. %..) scape naked, corymb-panicled, 

 glabrous ; leaves lance-obovate, with thin hairs above, and naked beneath, 

 margin ciliate, glandular-toothed, veins coloured ; calyx glabrous. 1-2 f. 



auranli'acum, (orange hawkweed, y. %.) scape leafy, hispid ; flowers co- 

 rymbed; peduncles glomerate; leaves oblong, acutish, pilose-hispid. Ex. 



kaVmii, (y. Au. %..) stem erect, sub-villose ; leaves sessile, lanceolate, acumi- 

 nate, sharply and divaricately toothed ; panicle sub-corymbose j pedicels 

 downy. 2 f. 



HIPPOPIIiE. 20—8. (^leagtii.) [From ippos, a horse, phao, to destroy.] 

 canaden"sis, (sea buckthorn, M. T2-) leaves ovate, nearly smooth above, ar- 



genteus beneath. 6-8 f. 

 argen"tea, both sides of the leaves covered with silver scales. 12-18 f. 



HIPPURIS. 1—1. (.Naides.) [From tppos, a horse, oara, tail.] 



vulga'ris, (mares-tail, y-g. M. %.) leaves linear, and lance-linear, verticillate. 

 HOPEA. 15—12. (MalvacetB.) [Dr. John Hope.] 



tincto'ria, (sweet leaf, y. Ap. Ij.) leaves lance-oblong, glaucous, pubescent be- 

 neath ; flowers sessile, axillary, in clusters. 1&-18 f. 



■JORDEUM. 3—2. {Graminm.) 

 juba'tum, (J. ^.) lateral florets abortive, awns of the calyx and corolla 6 times 



as long as the flowers. 2 f. 

 vulga're, (barley, Ju. ©.) florets all perfect, awned, in two erect rows. Ex. 



HORTENSIA. 10-3. (Caprifolia.) 

 specio'sa, (changeable hydrangea, r. and w. J. T^.) leaves broadly-ovate, ser- 

 rate, acuminate; flowers corymbed. From the East Indies. This is the 

 common flower-pot shrub called hyderindia, and by corruption of this word 

 hyderanga. 

 HOTTONIA. 5—1. (Lysimackia.) [John Hotton.] 

 infia'ta, (water feather, Ju. %.) stem thick, generally submersed ; scape 

 jointed ; flowers whorled, on peduncles ; leaves long, pectinate. Stagnant 

 waters. 

 HOUSTONIA. 4—1. (GentiancB.} [Dr. Houston.] 



caru'ka, (innocence, Venus'-pride, b. and w. M. Ij..) stem erect, setaceous, 

 dichotomous; radical leaves spatulate; cauline ones oblanceolate, oppo- 

 site; peduncles 1-flowered, elongated. 4-6 i. 

 longifo'lia, (b-w.) leaves narrow; flowers terminal, nearly sessile. 

 furpu'rca, purple flowers in terminal corymbs. 



HUDSONIA. 12—1. {Ccsti.) 

 erico'ides, (false heath, y. J. T^.) pubescent; stem suflruticose, sub-erect; 

 branches elongated; leaves filiform, subulate; peduncles lateral, elongated; 

 calyx cylindrical, obtuse; capsule pubescent; 1-seeded. 4-6 i. Pine barrens. 

 tomento'sa, hoary-pubescent. Sea-shore. 



nUMULlTS. 20—5. {Urticm.) [From Auotus, the ground, because, without support, it trails 

 on the ground.] 



lu'pulus, (hop, g-y. Au. "Zl-.) stem twining with the sun ; leaves lobed. One of 

 the best of tonics. 



HYACINTHUS. 6—1. (Asphodeli.) [Said to have been named from the friend of Apollo, 

 who, according to the poets, was changed into this flower.] 



orienta'lis, (garden hyacinth, r. Ap. %.) corolla funnel-form, half 6-cleft, 



ventricose at the base. Ex. 

 mus"cari, (musk hyacinth, r. Ap. %.) corollas ovate, all equal. Ex. 

 botryo'idcs, (grape hyacinth, b. Ap. %.) corollas globose, uniform ; leaves cy- 



lindric, channelled, straight. Ex. 

 racemo'sus, (hare-bell hyacinth,) flowers thick, ovate, those at the top sessile j 



leaveslax pendent, linear. 

 I cOTBo'sMs, (purple grape-hvacinth,) corollas angular-cylindric ; upper flowers 



long-peduncled. 



