BOTANIC MATERIA MEDICA, 441 
when the embryo of the seed lie in an ob- 
lique direction or position. 
Hexandria, or Hexandrous—hex-an’-dria’(Gr. 
aner, aman, genative andros, and hex, six). 
A flower having six stamens. 
Hilum—hi-lum (Lat. Az/um, a thread, a little 
thing). The eye of the seed, the scar or 
point of attachment to the pericarp or hull. 
Homopetalous—ho’-mo-pet’-a-lus (Gr. homos, 
like, and feta/on, a petal). Having all the 
petals formed alike, having all the flowerets 
alike, as in the Composite order. 
Homotropal—ho’-mot-ro-pal (Gr. homos, like, 
and ¢repo, I turn). When leaves, seed, ete: 
of plants take or have the same general di- 
rection as the body of which they are but the 
part. . 
Horehound—(As. hara-hune, horehound, from 
the words har, hoary or grey, and hune, 
consumption). A medicinal plant belonging 
to the mint family, Marubium Vulgare. 
Hortus-siccus—hor’-tus-sik’-kus Lat. hortus, a 
garden, and szccus, dry). A collection of dried 
specimens of plants arranged as a her- 
barium. 
Hydragogue—hi’-dra-gog (Gr. hudor, water, 
and ago, I lead). A medicine or cathartic 
that produces a quick and watery discharge 
from the bowels. 
Hydrangea—hi-dran’-ji-a (Gr. hudor, water, 
and anggeton, a vessel, a capsule), The hy- 
drangea aboresceus, a dwarf flowering shrub, 
much admired for its flowers. 
Hyoscyamus—hi’-os-si-a’-mus (Lat. hyoscya- 
mus; Gr. huoskuamos, henbane, from the two 
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