2LF * te /o ‘ 
P Seibhs , also, Melocactus, ae of Which, however, have. not ree ex 
hed by me; and LEchinocactus, mostly with a curved embryo. e F. 
second class includes Eehinocereus, with a arly straight embryo, and 
: very short dolvledoat Cereus, with a carats ame 0, and yess | in- 
d cumbent cotyledons) (probably also E'chinopsis and Pilocer » and _per- 
1aps Phyllocactus and Epiphyllum Opuntia, with a Bie or spiral 
embryo, (circular and with a larger album men in all Opuntiae eyliy ndraceae ; 
spiral and with a much smaller albumen in all Opuntiae ellipticae, 
ined ie a By and very Jarge cotyledons, Khipsalis and Pereshia may 
The flowers of all the rece beliiiging to the first a with the deat be 
xception of some Magmillariae, make their appearance on the growth 
* _ of the same year. Those of the sec class produce sha * ata always ~ 
upon the growth of the next precedii® or former a, _ The first class _ 
may, therefore, be distinguished by the name of l Begiom oF 
the direction of the cotyledons Jor C. apici florae, (from the positi on of 
flowers.)’ The second class can be Ei in a iia mane, 3 
Cactaceae contrariae, or C. lateriflorae. 
- Echinocereus is i 
sacred its short, 
at base, and thereby cespitosé; by 
by the nearly strai smbryo, ih 
to Whi aaah pecies have been referre 
) 
oy 
‘* 
and hy the 
tube. — For further neti compare the note 7. The s spe- 
bit.'Texas and ‘the northern Fakes of ie 
They extend even aft Ue 
be excluded from the old tis of the As 
f 
ay especially the La Plata countries a % oe, 
Size geographical distribution of the Cact wceae, To 
observed 
species of both are me hind in Texa: 
‘genera of Cheideoae. not mentio1 
2 not collation’ of Dr. Wisiseaas confirm the opinign fa ad 
ie te observer and st Ce 5 he sito: of Cactaceae, Prince Dyck . 
cies of 1 family have a very. limited 
n being those belon nging 
