LATHYRUS mutabilis.
Changeable-coloured Lathyrus.
Natural Order. L e g u m i n o s æ . DC.prodr. 2. p . 93.
Subordo I . PAPILIONACEÆ. Supra fo l. 159.
Tribus IV . VICIEÆ. Corolla papilionacea. Stamina diadelpha
(9 e t 1). Legumen continuum. Cotyledones crassæ farinaceæ,
per germinationera immutatæ sub terrà intià spermodermium
inclusæ remanentes. Radícula inflexo-curva.—Folia abrupté
pinnata {excepto Cicere), petiolo communi apice in setulam cirr-
humve desinente basi super caulem non articúlalo.— Tribus ap-
priml naturalis accedens hinc ad Phaseoleas ex habitu volubili
et cotyledonibus crassis, et ad Hedysareas mediante Adesmiá fo liis
abrupté pinnatis donata; ilRnc, sed è longinquo, ad Enlodas
ob folia abrupté pinnata, petiolos in cirrhum abeuntes, et cotyle-
donum historiam. DC. 1. c. p. 353.
L A T H Y R U S . CaZyx campanulatus 5-fidus, lobis 2 snperi-
oribus brevioribus. Corolla papilionacea. Stamina diadelpha.
Stylus complanatus, apice dilatatus, anticè villosus aut pubescens.
Legumen oblongum, polyspermum, bivalve, 1-loculare.
Semina globosa aut ungulata.—-Herbæ seepiûs scandentes. Stipulæ
semisagittatoe. Petioli apice in cirrhum ramosum abeuntes.
Folíola 1-3-juga. Pedunculi axiZZares. DC. 1. c. p. 369.
Sect. I. EueathvrüS. Vexillum basi edentatum. Foliola
opposita vel abortu nulla. Petiolus angustè alatus.
L. mutabilis, caule flexuoso alato : alis ciliato-pubescentibus, foliis
3-4-jugis : foliolis ovatis obtusis mucronatis glaucescentibus,
stipulis semisagittato-ovatis acutis basi angulato-denta-
tis, pedunculis multifloris folio brevioribus, laciniis calycinis
ovato-lanceolatis ciliatis inæqualibus longitudine tubi, legu-
minibus convexis angnstis punctulatis pubescentibus.
Rool perennial. Stems several from the same root,
from two to three feet in height, more or less flexuose,
hroadly winged from one leaf to the next, the wings
fringed with short pubescent hairs: besides the wings
there are two narrow sharp smooth angles. Z/caues pinnate,
with from 3 to 4 pair of leaflets: the petiole winged,
and terminated in a trifid tendril, the upper segment
of which is often again trifid: leaflets ovate, obtuse, with
a short mucro, rounded at the base, slightly glaucous,
maiiy nerved underneath, the lower onps largest. Sti-
2 B 2