458 TRANS. OF THE ACAD. OF SCIENCE. 
exsert with age. The direction of the styles, i in & flower 
and on the fruit, furnishes a tolerably good charact 
The position of the dead corolla on the capsule bed Te 
~ mentioned as a pretty reliable specific character. Th 
shape and even the texture of the capsule also o ought to 
~~ though in several species (C. anes for bee 
ts form is quite variable. 
“The number of seeds which ripen in each capsule furnishes 
no distinction, though the species with very crowded flowers, 
and some others with loose flowers also, often mp 
one or few seeds. The shape and surface of the seed onght 
to be studied say and will, yet, it is believed, help to distin- 
guish some spec 
As almost all the characters enumerated above are subject 
to more or less variation, it is necessary to bee the Gracie 
of a species on a combination of a number of 
as the value of these characters is necessarily pra 
mated by different botanists, some will consider as we 
ed The at what others will look upon as mere varieties. a 
pct species often seem to have a p Pil 
I nae myself, at iti ronal I discovered an nfvene el 
even farther than the influence of differe seem 
manure would go with any other ee If some ores 
very constantl _ to prefer certain plants to others, , (6. Bar 
| as — 
: idi e sh 
and all the circumstances Witch 6 suit as mid 
with the parasite. On the whole, ancodiees: 5 ierbaeeo 
elon, soa suit them best as nurses 5 na — ee 
and aos Gals eas aay into sp omn eee 
