Mountains. Dr Richardson. Drummond.—This is a well marked species, though allied to J. bufonius, and
it seems most abundant throughout N. America. The leaves are slender, setaceous, several from the root.
Stem from 8 inches to 2 feet, slender, but rigid, bare of leaves up to the panicle near the top, where is one
leaf immediately beneath the foliaceous bracteas. In the axils of the forks of the dichotomous panicle are 2
or 8 large nearly sessile flowers, and 2 or 3 unilateral ones, from the upper or inner side of the branches, the
under or outer side being bare of flowers. Sepals green, with white, membranous margins.
12. J. castaneus (Sra.); caule erecto tereti folioso, foliis supra canaliculatis subtus
teretibus (siccitate planis), capitulis plurifloris subbinis sessilibus v. pedunculatis bracteis
majoribus foliaceis capitulis longioribus, floribus sessilibus v. pedicellatis, capsulis ovali-
trigonis sublonge mucronatis perianthium superantibus. E. Bot. t. 90. Rich. A pp. p. 11.
Cham, et Schlecht. Linncea, 3. p. 374.—a. floribus capsulisque intense fuscis.—(3. floribus
capsulisque pallidis.— J. Lehmanni. E . Meyer in Herb, nostr.
H ab . York Factory, Hudson’s Bay; Edmonton House Fort, on the Saskatchewan, to the Rocky Mountains.
Drummond; and to Bear Lake. Dr Richardson. N. W. Coast, from Unalaschka to Kotzebue's
Sound. Chamisso. Beechey.
13. J. Menziesii (Br. in Herb. Banks); caule erecto tereti folioso, foliis lineari-acu-
minatis supra canaliculatis, capitulis terminalibus globosis 1-3, bractea exteriori ple-
rumque foliacea et capitula superantibus, sepalis lato-ovatis obtusis capsulam obovatam
nitidam muticam sequantibus.
H ab . N. W. Coast of America. Menzies, in Serb. Ranks. Common near the confluence of the Columbia,
and thence to Puget Sound. Douglas.—A span to nearly a foot high, the stem rigid, the leaves slightly
so. Heads of flowers generally too large. Sepals unusually broad.—A very distinct species, with the habit
of the preceding.
14. J. biglumis (L .); foliis radicalibus lineari-subulatis compressis (non canaliculatis)
basi in vaginam sensim dilatatis, capitulo terminali bifloro flore altero pedicellato ple-
rumque involucro foliaceo breviore, capsula turbinata retusa sepalis obtusis longiori.
E . Bot. t. 898. Cham, et Schlecht. Linncea, 3. p. 374.
H ab . Arctic Sea-coast and Islands. Dr Richardson. Sir E . Parry. Mr Edwards. Rocky Mountains,
north of the Smoking River. Drummond. Bay of Good Hope, Behring’s Straits. Chamisso.
15. J. triglumis (L .); foliis radicalibus lineari-subulatis canaliculatis bitubulosis vaginis
supra auriculatis, capitulo terminali 3-floro bracteam membranaceam sequantibus, capsula
elliptica acuta sepalis obtusis longiori. E. Bot. t. 148.
H a b . Arctic Sea-coast. D r Richardson. Alpine swamps in the Rocky Mountains. Drummond.
Ord. XIV. HYDROCH A RIDERS. Br.
1. VALISNERIA. L . \
1. V. spiralis. L .—V. Americana. Mx.—Ph. Am. l.p . 602.
H ab . Canada.—Living plants were sent from near Montreal, by Mr Kippin, to the Glasgow Botanic
Garden, where we had the opportunity of examining flowering specimens, and ascertaining that they were
the same as the European species.
* ( 2. UDORA. Nutt.
D ioica. Spatha bifida. M asc. Cal. 3-partitus. Cor. 3-petala. Siam. 9, 3 interiora.-^-
F cem. Cal. 3-partitus, tubo longissimo. Pet. 8. Filamenta sterilia 3 . Utriculus subtri-
spermus. Semina cylindrica. Nutt.—Herba aquatica, foliis verticillatis.
1. U. verticillata. Udora Canadensis. Nutt. Gen. Am. 2.p. 242. Elodea. Mx.
Serpicula verticillata, L .—Muhl.—S. occidentalis. Ph.
H ab . Canada, (Michaux. Cleghorn. Goldie.) to the Saskatchawan. Dr Richardson. Drummond.—I
have retained the name of verticillata to this, originally given to an East Indian Udora, from a conviction,
as far at least as can be conveyed by the dried specimens, that the plants of the Old and of the New World
are the same species. It extends throughout the whole continent of America, from the lat. of York Factory,
Hudson s Bay, in the north, to Buenos Ayres and Valparaiso in the south. The leaves varv much in size
and direction, so that probably the U. (Elodea) Granalensis, and U. Orinocensis of Humboldt and Kunth,
are mere varieties. Certainly my specimens from British Guiana are the same as those from Canada.
Ord. XV. O R C H ID E iE .* Juss.
§ I. M a l a x i d e 2e . Lindl.
1. MICROSTYLIS. Nutt. Lindl.
1. M. monophyllos (L in d l. Gen. Orch. p. 19.); caule-unifolio, racem o g racili elongato,
pedicellis flores sequantibus.—Lindl.— M . brachypoda. Gray, Mss. in Herb, nostr.—M a-
laxis m onophyllos. Willd.— O phrys. L.
H a b . Near Montreal. Goldie in Herb, nostr. Halifax. Goldie (ex Lindl.)_A very distinct species
from the following, (a European plant,) and first found in N. America by Goldie, and since by Drs Torrey
and Gray, in the United States, at Oneida county, New York.
2. M. ophioglossoides (N utt.); caule unifolio, racemo obtuso capitato multifloro, pedicellis
flores longe superantibus, labello tridentato__ Lindl. Bot. Reg. 1.1290. (var. /3.) Gen.
Orch.p. 19. M alaxis ophiog. Ph. Am. 1. p. 592. Loddig. Bot. Cal.p. 1116. M . u n ifolia.
Mx.
H ab. Canada, to the Saskatchawan. Dr Richardson. Menzies. Newfoundland. Dr Morrison. Nova Scotia.
3. M. diphyllos (Lindl. Gen. Orch.p. 19.); foliis duobus ovatis lanceolatisve acutis
laevibus, scapo triquetro, labello subrotundo acuminato acumine lacinias haud superante.
—Malaxis diphyllos. Cham, in Linncea, 3. p. 34.
H a b . Unalaschka. Chamisso.—This is equally unknown to me as it is to Dr Lindley.
2. LIPARIS. Rich.
1. L . liliifolia (R ic h .); foliis b inis oblongis acutis p licatis racem o paucifloro m ulto *•
*• I have followed'entirely the arrangement of Dr Lindley, to whose invaluable Genera and Species of
Orchideous Plants I refer for the characters of the Genera, so far as that work is published.
VOL. II. 2 B