f f Flores flavi.
19. L. Sabinii; erectus, (suflruticosus ?) elatus, caule glabriusculo striato, foliis pilis
brevibus fulvescentibus sericeis, foliolis 9-11 lanceolatis acuminatis basi attenuates, floribus
verticillatis (flavis) ebracteolatis, bracteis longis subulatis sericeis deciduis, calycis pilosissimi
basi gibboso, labio superiore brevi bifido, inferiore integro reflexo, pedicellis elongates, legu-
minibus sericeo-vfllosissimis fulvis subtetraspermis stylo persistente terminatis.—Douglas,
MSS. in Herb. Hort. Soc.
Hab. On the Blue Mountains of North-West America, and on the Dividing Ridge of the Rocky Mountains,
near the confines of perpetual snow. Douglas.—I regret that I possess no notes from Mr. Douglas
made from the recent plant of this beautiful species of Lupine, which its discoverer has honoured with the
name of his friend and patron, Jos. Sabine, Esq. I have heard him incidentally regret that he was not able to
send seeds of it to England, for that it was among the most beautiful of the genus, and from its elevated place
of growth, near the limits of perpetual snow, very hardy. I think, too, to have heard him say that it was
suffruticose.
20. L. sidphureus; erectus, caule erecto angulato-sulcato sparse foliisque (valde) sericeis,
foliolis 12-14 anguste lanceolatis basi apiceque acuminatis, bracteis subulatis deciduis, floribus
verticillatis ebracteolatis, calycis valde sericei basi subgibboso labio superiore bifido,
inferiore longiore integro.—Douglas, MSS. in Herb. Hort. Soc.
Hab. On the Blue Mountains of North-West America, and on elevated grounds near the source
of Clarke’s River. Douglas.—This has some affinity with the foregoing, yet appears to be - a distinct
species. It is a much slenderer and smaller plant in every respect; the leaves are whitish, the leaflets more
numerous and narrower, the flowers smaller and of a pale sulphur-colour.
SUBORD. II. C.3SSALPINEiE. Br.
T rib. VI. Cassie2e. DC.
26. GYMNOCLADUS. Lam.
Flores abortu dioici. Cal. tubulosus 5-fidus. Pet. aequalia oblonga e tubo exserta.
iSiam. 10 inclusa. Legumen oblongum crassum intus pulposum.—Arbores inermes, ramis
apice obtusis. Folia bipinnata, pinnis 4—7, inferioribus unifoliolatis, ceteris 6-8-jugis.
Flores racemosi. Petala albida. DC.
1. G. Canadensis. Lam. Diet. 1. p. 733, Illustr. t. 823. Mich. Am. v. 1. p . 241. t. 51.
Pursh, FI. Am. v. 1. p. 304. De Cand. Prodr. v. 2. p . 480.—Guilandina dioica. Linn. Sp.
PI. p . 546.
Hab. Canada, (Linn.')’, in the forests. Michaux.
27. CERCIS. Linn.
Cal. sepala 5 concreta in urceolum obtuse 5-dentatum inferne gibbum. Pet. 5 unguicu-
lata subpapilionacea omnia distincta, alis majoribus. Siam. 10 libera inasqualia. Ovarium
subsdpitatum. Legumen oblongum tenue compressum 1-loc. 00-spermum, sutura supera
seminifera subalata, altera dehiscente. Semina obovata, endopleura tumida pseudo-albur
minosa. Embryo rectus, radicula brevi, cotyl. planis, plumida inconspicua.—Arbores.
Folia simplicia basi cor data mvltinervia Integra, post Jlores orta. Pedicelli uniflori e
trunco ramisve fasciculati. DC.
1. C. Canadensis ; foliis acuminatis subtus ad nervorum axillas villosis. DC.—Linn. Sp.
PI. p. 534. Mich. Am. v. 1. p . 265. Pursh, FI. Am. v. 1. p. 308. Torrey, FI. ofUn. St.
v. 1. p. 441. De Cand. Prodr. v. 2. p . 518.
Hab. Canada. Pursh.
O r d . X X IX . ROSACEiE. Juss.
T r i b . I. A m y g d a l e j e . J uss.
1. PRUNUS. Toum.
Drupa ovata aut oblonga camosa glaberrima, polline caesio tecta, putamine compresso,
utrinque acuto, ad margines subsulcato, caeterum laevi.—Folia juniora convolutiva. Florum
pedicelli scepius umbellato-fasciculati \-flori, ante aut post folia evoluti. DC.
1. P . spinosa; ramis spinosis, pedunculis solitariis, calycibus campanulatis, lobis obtusis
tubo longioribus, foliis obovato-ellipticis vel ovatis subtus pubescentibus argute duplieatoque
dentatis, fructibus globosis. DC.—Linn. Sp. PI. p. 681. Engl. Bot. t. 842. Pursh, FI. Am.
v. 1. p. 333. De Cand. Prodr. v. 2. p . 532.
Hab. In hedges: introduced from Europe.
2. CERASUS. Juss.
Drupa globosa aut basi umbilicata carnosa glaberrima, polline caesio destituta nucleo
subgloboso laevi.—Folia juniora conduplicata. Flores nunc pedicellis 1 -floris e gemma squamosa
plurimis unibellato-fasciculatis insidentes, et tunc foliis prcecociores, nunc ramosi terminates
et post folia evoluti. DC.
S e c t . I. C e r a s o p h o r a . DC. Flores umbeUati, pedicellis unifloris e gemmis ortis.
1. C. pumila; striata, ramis virgatis, floribus subumbellatis pedunculatis, calycibus campanulatis
brevibus, foliis obovato-oblongis erectis subtus glaucis vix serrulatis glabris, fructu
ovato nigro. De Cand. Prodr. v. 2. p . 537. (non Mich, fide Seringe.)—Prunus pumila.
Linn. Mant. p . 73. “ Mill. Ic. t. 89. ƒ 2.” Pursh, FI. Am. v. 1. p. 331. Torrey, FI. o f Un.
St. v. 1. p . 469.
Hab. Canada. (De Cand.)—As a native of Canada, I am unacquainted with this plant, unless, as 1 sus-
pect, it be the same as the Cerasus depressa. My specimens from the Garden of the Horticultural Society,
and one from M. Seringe, who prepared the specific characters of the genus in De Candolle’s Prodromus
Syst. Veget., are identical with what I here consider the true depressa. The last-mentioned author refers
the C. pumila of Michaux to C. depressa, and says that it is not the same as the Prunus pumila of Linn.;
yet he quotes it under both. He describes the fruit as black, while Torrey and Pursh say it is red. This
plant is compared, by some authors, in its general habit, to Amygdalus nana, and such a comparison is
equally applicable to C. depressa. The difficulties attending the American species of this genus can only be
removed by carefully studying the plants in a living state, both during the season of the blossom and the
fruit.
2. C. nigra; inermis, umbellis sessilibus paucifloris, lobis calycinis obtusis, foliis ovatis
acuminatis, petiolis biglandulosis. DC.—“ Loisel. in Duham. ed. nov. v. 5. p . 32.” De Cand.
Prodr. v. 2. p. 538.—Prunus nigra. Ait. Hort. Kew. v. 2. p . 165. ed. 2. v. 3. p. 198. Sims
in Bot. Mag. t. 1117. Torrey, FI. ofUn. St. v. 1. p . 469.