H Y P 171 



172. GNAPHALIUM. (A Greek name.) 



Marganta'ceum, (large flower, life-everlasting. O. y. & w. Ju. 7J.) leaves 

 linear-lanceolate, gradually narrowing, ac n te ; stem branching above \ 

 corymb fastigiate ; flowers pedicelled. Flowers v, ith white pearly 

 rays and yellow disks. 1 2. f. 



131. HEDEOMA. 



Pulegio'ides, (pennyroyal. O. b. J. O) pubescent; leaves oblong, ser- 

 rate ; peduncles axillary, whorled. 6 8. i. 



173. HELIANTHUS. (From Elios, the sun, and anthos, flower.) 



Exotic. 



An"nuus, (common sunflower, y. & w. Ju. 7|) leaves aL cordate, 3- 

 ner.ved ; peduncles thickening upwards ; flowers nodding. 6 10. f. 



1213. HEPATICA. (From Hepar, the liver.) 



Acutil"oba, (heart-liverleaf. O. w. & b. Ap. TJ.) leaves cordate, 3 to 5- 

 lobed ; lobes entire, acute ; leaves of the calyx acute. Grows in 

 woods, preferring the north side of hills and mountains. 5. i. 



America/no,, (kidney-liverleaf. O. w. & b. Ap. 7J.) leaves heart-reni- 

 form, 3-lobed ; lobes entire, round-obtuse ; leaves of the calyx ob- 

 tuse. Grows chiefly in the woods, preferring the south side of hills 

 and mountains. This is sometimes called the triloba. 5. i. 



11. HIPPURIS. (From ippos, a horse, and oura, tail.) 



Vulga'ris, (mare's-tail. y-g, M. 0|) leaves Lioa r, and lance linear, ver- 

 ucillate. 



41. HOUSTONIA. (From Houston, a fcrtanist.) 



Ceru'laa, (innocence, forget-me-not. O. b. & w. M. 7J.) stem erect, se- 

 taceous, dichotomous ; radical leaves spatulate ; cauiine ones oblan- 

 ceolate, opposite ; peduncles 1-flowered, elongated. 4 6. i. Verv 

 common in New England. 



205. HUMULUS. 



l/u'puius t (hop. O. g-y. Au. ^) stem twining with the sun j leaves 

 lobed. 



102. HYDRANGEA. (From ffudor, water, and angeion, a vessel.) 



Vulga'ris, (hydrangea. E. w. Au. TV) leaves oblong-ovate, obtuse at the 

 base, acuminate, glabrous beneatn ; cymes naked. 5. f. 



12-5. HYPERICUM. 



Perfora'tum, (O. y. J. Tj.) erect, branching ; stem 2-edged ; leaves ob- 

 long, obtuse, transparently punctate; panicle terminal-brachiare, 

 leafy; petals twice as long a* .he acute, lanceolate calyx. This is 

 the common St. John':* wort, so troublesome to farmers. 1- -3. i. 



