32 



92. ARABIS. 



The following I cannot place : — 

 ■ 28. pedemontana. "Stems many, ascend- 

 ing, somewliat flexuose, scantily branched. 

 Root L. on long stalks, somewliat cordate, 

 reniform, obtusely 5-lobed. Lower Stem L. on 

 stalks shorter than themselves, cordato-ovate, 

 acutely 5-7-lobed ; upper sessile, triangulari- 

 lanceolate, attenuate at base, with 1 or 2 acu- 

 minate teeth on each side in the lower part. 

 Pods somewhat spreading, quite smooth, flat, 

 terminated by the somewhat thickened stigma, 

 p. ? 8. High mountains. Between the upper 

 valleys of the Po." — Boissier. 



Neither the descriptions nor the arrange- 

 ment of this genus are satisfactory. The broader 

 or narrower margin of the seeds is an inde- 

 finite character, and perhaps not always con- 

 stant. The most natural divisions seem to be — ■ 



A. Plant diffuse, without any rosette of 



root L. Rac. lax. 

 S. Root L. forming rosettes. Pan. las, with 



spreading branches. 

 C. Root L. forming rosettes. Pan. erect. 

 These would be subdivided, first upon the 

 petals, then upon the margiu of the seeds, and 

 lastly on the form of the base of the L. I have 

 not materials to foUow out this arrangement. 



93. CARDAMINE. 



A. Seed-stalks filiform. 



i. All L. undivided. Sp. 1-3. 



ii. Root L. undivided. Stem L. tripartite, 

 or pinnatifid. Sp. 4, 5. 



iii. All L. pianate, or pinnatipartite. 



a. Leaf-stalks with an auricle at the base. 

 Sp. 6-8. 



b. Leaf-stalks without an am'icle. Sp. 

 9-15. 



B. Seed-stalks compressed or winged. Sp. 

 14-17. 



A. Seed-stalJcs filiform. Flower, where not 



mentioned, white. 



i. All L. undivided. 



1. asarifolia. L. cordato-orbiculate, sinu- 

 ato-dentate, stalked, smooth. Stem ascending, 

 leafy. Pods erect, twice as long as stalk, p. 

 6. Mountain rills. Pdm. Prov. Pistoja. 



2. alpina. L. thick, smooth. RootL.rhom- 

 beo-ovate, entire, or obtuse, on long stalks. 

 Stem L. few, entire, sometimes thiee-lobed, or 

 with a single auricle, on short stalks. Stigma 

 nearly sessile, p. 6, 7- Very high. Alps. 

 Pyr. 



3. hamulosa. " Somewhat shrubby. L. 

 obovate, on long stalks, ^ntii-e, or acutely 

 dentate ; upper L.-stalks auriculato-sagittate. 

 Stigma neai-ly sessile, ■w. 7. Calcareous 

 rocks. Mountains of Carrara." — Bert. 



ii. Root L. entire. Stem L. ternate or 

 pinnatifid. 



4. resedifolia. L. not thick, smooth. Root 

 L. ovate, on long stalks. Stem L. produced 

 on each side into an acuminate auricle ; lower 

 ternate, upper pinnate. Pods erect, with a 

 short point, a. b. or p. 6-8. Moist shade, 

 high. Alps. 



5. ^anulosa. " Root scaly, with small 

 axillary bulbs. Crown with densi fibres and 

 runners. Root L. cordato-subrotund, on long 

 stalks. Stem L. pinnate ; uppermost nearly ses- 

 sile. Stamens somewhat shorter than corolla, 

 p. 4, 5. Meadows. Turin. Much like C. pra- 

 tensis." — Bert. 



iii. All L. pinnate, or pinnatipartite. 

 a. Leaf -stalks with an auricle at the base. 



6. impatieus. Lts. of upper L. lanceolate, 

 mostly incise. Auricles to L. -stalk long, 

 linear, fiinged. a. 5, 6. Shady hills. 



7. Chelidonia. L. pinnate, nearly smooth. 

 Lts. about five, stalked, ovate ; lower pinnate. 

 Auricles not fringed. Fl. purple, p. 6. 

 Shade. Apen. Rome. Naples. 



8. bicolor. " L. pinnate, stipulate ! Lts. 

 eUiptico -lanceolate, sessile. Sepals subrotund. 

 p. 3{oist meadows. Bohemia." — DC from 

 Presl. 



b. Leafstalks without an auricle. 



9. amara. Lts. of root L. subrotundo- 

 ovate ; of stem L. inciso-dentate. Style long, 

 slender. Stem furi'owed, rooting at base. 

 Anthers violet. Pet. three times calyx, p. 5. 

 Brooks and wet woods. 



)3. uliginosa, Guss. Style short. Stigma 

 somewhat capitate. Anthers white. 



10. latifolia. L. pinnate. Lts. suborbi- 

 cular, dentato-angular. Pods erect, acuminate 

 with the style, p. 5-7. Mountain rills. Pyr. 



11. hirsuta. Stem angular. Lts. of 

 lower L. subrotimdo-ovate, stalked ; of upper 

 oblong, nearly sessile, somewhat toothed. Pet. 

 oblong, twice calyx. Pods erect. Width ex- 

 ceeding length of style ; longer than stalk, 

 even before the Pet. have fallen, a. 3-6. 

 Moist shade. 



12. sylvatica. Stem angular. Lts. of 



