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HYP Wk 
17—2. GNAPHALIUM. (A Greek name.) 
Mar garita’ceum, large flower, life-everlasting. O. y. & w. Ju. 2) leaves 
linear-lanceolate, gradually narrowing, acute; stem branching above; 
corymb fastigiate; flowers pedicelled. Flowers with white pearly 
,. Trays and yellow disks. 1—2. f. 
‘13—1. HEDEOMA. 
Pulegio’ides, (pennyroyal. O. b. J. 4) pubescent; leaves oblong, ser- 
rate; peduncles axillary, whorled. 6—8. i. 
17—3. HELIANTHUS. (From Elios, the sun, and anthos, flower.) 
Exotic. 
An/’nuus, (common sunflower. y. & w. Ju. 2) leaves all cordate, 3- 
nerved ; peduncles thickening upwards; flowers nodding. 6—10. f. 
12—13. HEPATICA. (From Hepar, the liver.) 
Acutil’’oba, (heart-liverleaf. O. w. & b. Ap. 2L) 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’na, (kidney-liverleaf. O. w. & b. Ap. 21) 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 ériloba. 5. i. 
1—1. HIPPURIS. (From ippos, a horse, and owra, tail.) 
Vulga’ris, (mare’s-tail. y-g, M. 2) leaves liazac, and lance linear, ver- 
ticillate. 
4—l. HOUSTONIA. (From Houston, a botanist.) 
Cerw‘lea, (innocence, forget-me-not. O. b. & w. M. 2[) stem erect, se- ° 
taceous, dichotomous; radical leaves spatulate; cauline ones oblan- 
ceolate, opposite; peduncles 1-flowered, elongated. 4—6.i. Verv 
common in New England. 
20—5. HUMULUS. 
Lu’pulus, (hop. O. g-y. Au. 2) stem twining with the sun; leaves 
lobed. ‘ 
10—2. HYDRANGEA. (From Hudor, water, and angeion, a vessel.) 
Vulga’ris, (hydrangea. E. w. Au. h) leaves oblong-ovate, obtuse at the 
base, acuminate, glabrous beneath; cymes naked. 5. f. 
12—5. HYPERICUM. 
Perfora’twm, (O. y. J. 2) erect, branching ; stem 2-edged ; leaves ob- 
long, obtuse, transparently punctate; panicle terminal-brachiate, 
leafy ; petals twice as long ax ‘he acute, lanceolate calyx. This is 
the common St. John’s wort, so troublesome to farmers. 1—3. f. 
