INDIGOFERA SPIN OSA, Forsk.
IN DI GOFER A, Linn.
Sectio S PI SI FLOR Æ, Nob.
Folia digilalo-trifoliolala (y. adfoliolum terminale tedücta)', subsessilia v . breve petiolata. Pedunculi
uni-v. pauci-flori (pedicellis laleralibus) , demum in spinas persistentes mutati. Corolla fu g a x. Le-
gumen rectum) lineare. Semina subcubicd.
INDIGOFERA SPINÖSA, Forsk., Deter. t p. i 37, .— Vaiil, Symbol p. 55. — D. vol. a, p. 23a
Fruticosa, divaricata, ramosissima. Spinis äcicularibus v. subulatis, rectis, glabris, plerumquefolio
longioribus, aliis i-3-floris, aliis sterilibus. Ramis ramulisque noveliis älbido-v. cinereo-sericeis.
Foliis i-v. Szepiüs 3-foliolätis. Föliölis obovatis v. cuneiform ibus v. spathulatis, muefonätis,. cärnosis,
argenteo-sericeis v. laxe strigulosis, glaucescentibus. Stipulis setaceis v. dentiformibus, minimis. Pedicellis
filiformibus, cernuis. Galyce minimo, profunde quinquefido. Leguminibus compressö-tetra-
gonis v. teretiusculis, deflexisv. patentibus, oblique cuspidulatis, 5-io-spermis, demum laxe strigulosis.
Fruticulus (ex speciminibus obviis 1/2-1 1/2-pedalis) erectus, dumulosus, plerumque intricato-ramosissimus , partibus
herbaceis (saltern juvenilibus) selulis adpressis medifixispliis minusveindutus. Cortex demum crassus, rimosus, fungosus.
Rami vetuli plus minusve tortuosi, teretes, aphylli; annotini tomeutelli; seniores demum glabrati. Rami novelli simphces
v. subdistiche racemoso-aut panieulato-ramulosi, plus minusve angülali, foliati, axillis autspimgeni aut ramuligeni; ve-
getiores 1/2-i-pedaIes , virgati. Ramuli divaricati, graciles, spiiiosi, p'arce foliati, angulosi. Spin« 3- i 5 lineas long®, tenues,
strict®, teretes, plus minusve divaricat®. Folia parvula v. minima, internodiis plerumque breviora , individuis aliis
pleraque v. omnia subsessilia, aliis pleraque petiolata, ad singulos ramos v. ramulos nunc omnia trifoholata, nunc absque
certoordine alia uni-alia tri-foliolata. Foliola minuta v. minima (ramis vegetioribus ad maximum 3-4 bneas longa;
ramularia s®pe vix 1 lineam longa), sessilia, haud raro complicata, crassa, uninervia (nervo supra impresso, subtus plus minusve
carinante), apice retusa v.emarginata v. rotundato-obtusa v. truncata v. acuminiilata, nervo excurrente apiculata. Sti-
pulje plerumque vix oculo nudo conspicu®. Pedicelli calyce nunc longiorcs, nunc vix ®quilongi. Bracte-e setace®, mini-
ra®. Flores minuti. Calyx 2/3 line® longus, hemisph®rico-campanulatus, extus incano-v. argenteo-stngosus; lacim®sub«-
quales, e dilatata basi sübulat®. Corolla ex sicco rosea v. purpurea, calyce plus duplo longior. Y exillum 2 lineas longum,
obovato-subrotundum, obtusissimum, obsolete unguiculatum, dorso incano-sericeum.Carinavexillo paululobrevior,cucul-
liformis, rostellulata, biunguiculata, secus medium utrinque in calcar breve conicum producta. A l s carina aquilong* et
latiores, brevissime unguiculat®, subdolabriformes, oblique truncato-rotundat®. Anthers minim®, cuspidulat®. Ovarium
lanceolato-lineare, sericeum. Stylus filiformis, inflexo-geniculatus. Stigma subclavatum. Legumen i /3 -i polhcem longum,
circiter 1 lineam latum, obsolete.torulosum v. etorulosum, ad suturas subdepressum, juvenile argenteo sericeum, matu
rum glabellum v. laxe strigulosum. Semina fere 1 lineam longa, lutescentia, transverse rugoSa, obtuse tetragona, snbhnea-
ria, plerumque basi et apice truncata. [Exam, s sp.)
Crescit Arabia Felici : Ditione Yemen : Forshal. — Botlal in Herb. Mus. Par. . ad montem Maam
mara, Octob. anni 1837; circa CaA/w,Novemb. anni 1837; prope Hais, Octob. anni 1837.
EXPLICATION DE LA PLANCHE 49°*
Fig. 1. Fleur entière^ avec le pédicelle, la bractée
et le sommet de lepine pédonculaire, grossis dix
fois.
Fig. 2. Calice fendu longitudinalement ( entre le
deux segments supérieurs) et ouvert, vu à la surface
interne, grossi comme dans la figure 1.
l ’S.