icy 
18 DESCRIPTIONS OF SOME 
libus minoribus obcuneato-trilobis, terminali maximo. Folium cau- 
linum sessile, tripartitum, segmentis latissimis rotundatis trilobis, 
lobis tridentatis. Racemus densus, bracteis magnis obcuneatis in- 
tegris vel trilobis. Flores unciales, pallide viridescentes, purpureo 
variegati, pedicellos subeequantes. Petala exteriora obtusa, apice 
emarginata. Calcar longum, obtusum, incurvum. 
Has. In montibus Tibetize occidentalis. 
This curious little species of Corydalis is not uncommon on the 
mountains of Western Tibet, at the elevation of 15—16,000 feet, grow- 
ing in warm situations and often among stones, which generally cover 
the stem and leaf-stalks, so that nothing but the head of dull purplish 
flowers is visible. Though usually much smaller than the specimens 
described and figured by M. Cambessédes, I can find no marked dif- 
ference between that and my species, which indeed was collected in the 
same district of country. The shape of the calycine scales is extremely 
variable. In my figure a very common form is represented, but they 
. are often much more mucronate and occasionally quite as much elon- 
. gated as in the figure quoted. : 
= Puare IX. Fig. 1. Flower. 2. Sepal. 8. Pistil :—adl magnified. 
2. SISYMBRIUM PRIMULJEFOLIUM, n. sp. 
Foliis radicalibus caulem superantibus obovatis seriatis inferne longe 
. attenuatis, caulinis parvis ovato-oblongis sessilibus, sepalis persisten- 
. tibus erectis cylindricis. 
Radix crassa, fusiformis, tuberculata. Folia omnia radicalia, late spa- 
thulata, longe petiolata, versus apicem dentata. Scapi e collo plures, 
supra medium bracteati. Bractee ovato-oblong:e, inferiores vacue, 
p superiores floriferz, sed infra flores supremos seepius minute vel plane 
.. mulle. Pedicelli bracteas vix equantes, patentes. Sepala oblonga, 
basi æqualia. Petala obcuneata, indivisa. — Siligue sepalis petalisque 
. marcescenti-persistentibus stipatæ, eylindrico-subulate, vix sub- 
compresse, rectæ vel ssepius incurvee (ut videtur vix dehiscentes). 
~ Falve membranacee, tenuissime reticulato-nervose, Dissepimentum 
completum, membranaceum, 1-nerve, Replum validum. Semina nu- 
merosa, alterna; cotyledones 0 ||| ; radicula seepe oblique subtorta. 
Ha». In monte Hattu Himalayze occidentalis, alt. 10,000 ped., in ru- 
pibus madidis. Junio mense fere defloratum legi. 
"This is in many respects a very puzzling plant ; technically the cha- 
