2. SHEPHERDIA. butt.
Diocia. Masc. Perianthium 4-fidum. Stam. 8 inclusa, glandulis 8 alternantibus.—
Fcem. Perianthii tubus ovarium arete investiens, (non adhasrens) limbo 4-lobo. Stylus 1.
Stigma obliquum. Bacca calyce carnoso tecta globosa, monosperma. Frutices Boreali-
Americance, ramis spinescentibus foliisque deciduis oppositis, argenteo-nunc etiam ferrugineo-
lepidotis. Flores aggregati.
1. S. Canadensis (Nutt.); foliis elliptico-ovatis supra nudiusculis subtus stellato-pilosis
ferrugineo-squamulosisque.— Hippophae Canadensis. Willd.—Ph. Am. \.p . 115. Rich.
App. p. 38.
H ab . Throughout Canada to Fort Franklin on the Mackenzie River, and from Newfoundland and Hud-
son’s Bay to the Rocky Mountains. Dr Richardson. Drummond. N. W. Coast. Mr Menzies.
2. S. argentea (Nutt.); foliis oblongo-lanceolatis utrinque dense subargenteo-lepidotis.
(Tab. CLXXVIII.)—Hippophae argentea. Ph. Am. 1. p. 113.
H a b . Saskatchewan; between Carlton and Edmonton House Forts. Dr Richardson. Drummond.—
This is a species very distinct from the preceding, at once known by its more spreading branches, narrower
leaves covered on both sides with copious somewhat silvery scales, and pellucid fruit, of so bright a red that
the Indians call the plant Metheoo-meeva, or Bloody Berry. Pursh mentions its great similarity with
Elceagnus argentea; but here the leaves are much narrower, less silvery, and they, as well as the branches,
are opposite : and the flowers and fruit are extremely dissimilar.
T a b , CLXXVIII. S h e p h e r d ia a r g e n t e a . A. Male Plant. Fig. 1, Flower; / 2 , Flower laid open.
_B. Female Plant. Fig. 8, Female flower; f . 4, Ditto, laid open, showing the pistil; ƒ 5, Stigma;
ƒ. 6, Fruit (nat. size) ; ƒ. 7, Fruit; ƒ 8, Fruit laid open ; ƒ 9, Seed -.—magnified.
O rd. L X X X I. THYMELE^E. Juss.
i. DIRCA. L.
Perianthium coloratum, tubuloso-campanulatum, limbo obsolete. Stam. 8, exserta,
inmqualia. Stylus filiformis. Drupa monosperma.—Frutex Bor.-Americana, ramis
articulatis. Flores sub frondescentia, temi e singula gemma. Liber tenacissimus.
1. D . palustris. L .—Ph., Am. 1 • p. 2.68. Gawl. in Bot. Reg. t. 292.
H a b . Canada. Cleghom. Drummond.
O rd. L X X X II. SANTALACEiE. Br.
1. COMANDRA. Null.
Perianthium suburceolatum, tubus ovario adhserens, limbo 5-4-partito. Stam. 5 vel 4
petalis opposita summo tubi inserta. Discus perigynus tubum investiens, 5-lobum, lobis
cum staminibus alternantibus. Fructus subdrupaceus, 1-spermus, perianthii limbo coronatus.
Suffrutices glaberrimce, basi subsarmentosce, erectos, Boreali-Americarue: foliis
alternis integerrimis. Pedunculi axillares terminalesque. Flores umbellulati parvi.
1. C. umbellata (Nutt. Gen. Am. 1. p. 157); caule ramoso, foliis lanceolatis subrigidis,
umbellulis in paniculas foliosas terminales dispositis, perianthii laciniis oblongis erectis.
(Tab. CLXXIX. A.)—Rich. App. p. 8.—Thesium umbellatum.^L.—Ph.Am. l.p . 177.
—T. corymbulosum. Mx.
H a b . From Lake Huron to the Saskatchewan, and to the Rocky Mountains. Dr Richardson. Drummond.
Douglas. D r Todd. Dry banks of the Columbia River. Tolrnie. Gairdner.—This species is correctly
described by Mr Nuttall, except that he considers the five laciniee of the perianth as the five petals of a
corolla inserted upon the edge of a tubular calyx, which most assuredly is not the case. He well observes
the curious tuft of hairs by which each anther is attached at the back to the segment of the perianth. The
fruit seems to be chartaceous, enveloped by the thickened tube of the perianth, and thus somewhat drupaceous.
In this species it is only the lower part of the tube that is united with the ovary: and the persistent upper
free portion of this tube forms a sort of neck at the top of the fruit.
T a b . CLXXIX. A.—C om a nd r a u m b e l l a t a . Fig. 1, Umbel of flowers; ƒ 2, Flower laid open;
ƒ 3» Segment of the perianth, with the stamen, exhibiting the tuft of filaments at the back of the anther;
f . 4, Fruit (nat. size) ; f . 5, Fruit;—magnified.
2. C. livida (Rich. App. p. 9); caule simplici, foliis ellipticis flaccidis, umbella solitaria
axillari pedunculata triflora, perianthii laciniis brevibus patentibus. (Tab. CL X X IX . B.)
H a b . From Lake Winipeg to the Rocky Mountains, and to lat. 69° on the Mackenzie River. D r Richardson.
Drummond. Newfoundland and Labrador. Miss Brenton. Dr Morison.—This is a very distinct
species, and has been well described by Dr Richardson. Here the whole tube of the calyx is incorporated
with the germen; the limb short and spreading. Filaments, also, and style very short. There is ripe fruit
upon the specimens, but pressed and injured. The single seed, however, appears to be attached near the
middle to a funiculus, which rises from the base of the cell.
T a b . CLXXIX. B.—C om a nd r a l iv id a . Fig. 1, Umbel of flowers; / 2, Single flower; ƒ 8, Segment
of the perianth, with the stamen ; ƒ 4, Fruit (nat. size) ; ƒ 5, Fruit; and ƒ 6, Fruit cut through transversely,
containing the seed:—magnified.
O rd. L X X X III. ARISTOLOCHIE^E. J uss.
1. ASAEUM. L.
1. A. Canadense. L .—Ph. Am. 2. p. 596. Hook. Bot. Mag. t. 2769__ /3. perianthii
lobis longissimis subulato-acuminatissimis.
H ab. Throughout Canada to the Saskatchewan. Dr Richardson. Drummond.—Q. A b u n d a n t in shady
pine woods, among moss, on the N. W. Coast. Douglas.—This species varies exceedingly in the length of
the acumination of the lobes of the perianth ; but none of the specimens from the east side of the Rocky
Mountains have them much more than half the length of those from the Pacific side of America: these lobes
appear also to be much more erect, the flowers larger, and the leaves more truly cordate and less downy.
Future observation may prove it to be a distinct species, as Mr Douglas considered it.