LEGUMINOSiE. 



107 



Koch) pubescent. Seeds 3, globose, with black 

 dots. Lts. 6-8, linear. Cirrhi generally want- 

 ing. Stip. very small, seinilmstate. Margin 

 entire, a. 4-6. Bri/ stony. Garinthia. Rome. 

 K. Nap. Sic. 



/3. miifloncm. Leg. smooth. Stip. dentate. 



199. PISUM. 



1. sativum. Stalks 1-2-flowered. Seeds 

 globose. Lts. 6, ovate. Stip. semicordate at 

 base, exceeding common flower-stalk, a. 5-7. 

 Cult. 



3. arvense. Stalks usually 1 -flowered. 

 (Seeds angulato-impressed, Koch.) Lts. 4-6, 

 roundish, ovate. Stip. semicordate, dentate at 

 base, exceeding common flower-staUv. a. Es- 

 capes. Naturalized in woods. TivoU. 



3. elatius. Stalks 1-2-flowered. Lts. about 

 6, elliptic or oblong. Stip. semicordate, den- 

 tate at base, not half as long as common flower- 

 stalk, a.? 6? Thickets. Istria. 



4. maritimum. Stalks many-flowered, 

 shorter than L. Lts. 5-8, eUiptic, entire. Stip. 

 hastate, with acute auricles, (a. DC.) p. 7- 

 Stony shores, s. Eng. Pic. ? Ger. 



200. LATHYRUS. 



A. Standard even at base. 

 i. Stalks many -flowered. Plant perennial. 



a. One pair of Lts. Sp. 1-5. 



b. More than one pair. Sp. 6-8. 



ii. Stalks 1-3 -flowered. Plant annual. 



a. No true L. Sp. 9, 10. 



b. One pair of Lts. Sp. 11-23. 



c. More than one pair. Sp. 24. 



S. Standard vrith a conical protuberance on 

 each side of base. Sp. 25-30. 



A. Standard even at base. 



i. Perennial. Stalks many-fiowered. 



a. One pair of Lts. 



1. tuberosus. Stalk 3-6-flowered, three 

 times as long as L. Cal. veinless. Teeth 

 broadly acute. Leg. reticulate. Seeds smooth. 

 Stems 4-edged. Lts. elliptico-oblong. Stip. 

 semisagittate. Fl. pink. p. 7, 8. Fields. 

 m. and s. Eur. 



2. pratensis. Stalks twice as long as L. 

 Cal. nerved. Teeth finely acute. Leg. obtusely 

 veined. Seeds smooth. Stem 4-edged. Lts. 

 lanceolate, nerved. Stip. large, sagittate. Fl. 

 yellovj. p. 6, 7. Moist meadows. 



3. sylvestris. Stalks 3-8-flowered, as 

 long as L. Leg. oblongo-linear, reticulate. 

 Seeds warty, half surrounded by hdum. Wing 

 of L. -stalk much naiTower than that of stem. 

 p. 7, 8. Woods and thickets. 



4. platyphyllos. StaUcs exceeding L. 

 Leg. oblongo-linear. Seeds somewhat warty, 

 half sm-rounded by hilum. "Wing of L. -stalk 

 as wide as that of stem. p. 7, 8. Thickets. 

 n. and m. Ger. 



5. latifolius. Stalks exceeding L. Leg. 

 oblongo-linear, reticulate. HiLum only occu- 

 pying one-thii'd of circumference of seed. 

 Wing of L. -stalk as wide as that of stem. p. 

 7, 8. Austria. Istria. 



a. Lts. about 1 inch wide, 2^ long. 



fi. ensifolia. Lts. about -^ inch -ndde, 7^ 

 long. In compliance ivith Koch, I join 

 this to L. latifolius. 



b. More than one pair of Lts, 



6. heterophyllus. Stalks 6-8-flowered, 

 exceeding L. Leg. oblongo-linear, reticulate. 

 Seeds warty. Hilum occupying hardly one- 

 third of the circumference. Widevnugs to L.- 

 stalk and stem. Lower L. with only 1 pair of 

 Lts. p. 7, 8. Mountain thickets, m. Eur. 



7. palustris. Smooth. Stalks 3-5 -flowered, 

 somewhat exceeding L. Cal. Teeth triangular, 

 shorter than tube. Stem winged. L.-stalk 

 not winged. Lts. 6, nervoso-venose, oblong. 

 p. 7, 8. Boggy meadows, occ. 



8. cirrhoEus. " Smooth. Stalks many- 

 flowered, exceeding L. Cal. Teeth unequal, 

 narrow, shorter than tube. Leg. oblong, finely 

 reticulate. Stem winged. L.-stalk winged. 

 Lts. 5-6, elliptic, reticulate. Tendi-ils very 

 much branched. Olette in Pyr. Cors." — DC, 

 who puts this among the annual plants, with 

 from \ to % flowers. 



ii. Annual. Stalks \-2>-flowered. 

 a. No true L. 



9. Aphaca. Stalks 1-flowered. Tendi-ils 

 filiform. Stip. large and leaf-like, sagittato- 

 cordate. a. 6-8. Satidy fields, occ. 



10. BS'issolia. Stip. small, subulate. StaUc 

 dilated into a grass-like L. Tendi'ils 0. a. 5. 

 Gravelly banks, occ. 



b. One pair of Lts. 



11. sphsericus. Stalks short, thick, 1- 

 flowered, awned. Cal. Teeth finely aCute, longer 

 than tube. Leg. liuear, nervoso-striate, haii'- 



p2 



