BOTANIC MATERIA MEDICA, 287 
also solitary and infloresce in spikes; bracts 
heart-shaped, serrate and sharply pointed. 
Fruit one-celled, with two or three valves; 
Spores minute, granular and tetrahedral in 
shape, each side presenting four facets. Under 
the microscope a network of hexagonal lines 
are seen. Lycopodium of the stores is a taste- 
less, mobile, straw-colored powder, floating up- 
on water and not easily wetted. When thrown 
into a flame ignites immediately, with a slight 
explosion. Lycopodium contains about 40 per 
cent of fixed oil, with a volatile base and about 
4 per cent of ash. Lycopodium is known as 
vegetable sulphur, and is occasionally given in- 
ternally, but more generally used as a local ap- 
plication for sores and excoriated surfaces; also 
used as an agent to prevent the adhesion of 
pills and troches. The name is supposed to be 
derived from the foot-like leaves and the club- 
like processes of the pollen, 
Lupulinum, Lupulin, or Lupuline. Ob- 
tained from the dried strobiles of the female 
plant, Humulus Lupulus, the common Hop of 
the temperate climates of the world.—Natural 
order Cannabinezx, or Urticacez, Lupulin is 
the minute, yellow grains or glands adhering to 
the base of the strobiles of the hop. In ap- 
pearance they are of a light brownish yellow, 
but becoming deeper in color by age. Under 
the microscope the grains of Lupulin are hood- 
shaped and netted; the lower half of the grain 
is obtusely conical in outline. Six pounds of 
hops yield about six ounces of Lupulin. The 
minute grains or glands contain about 2 per 
cent of volatile oil, 10 per cent of bitter extrac- 
