LEGUMINOS^E. CLXXII. LATHYRUS. CLXXIII. OCHRUS. CLXXIV. OROBUS. 



337 



than the tube ; legumes curved. ^ . H. Native of Siberia. 

 Willd. spec. 3. p. 1091. Buxb. cent. 4. p. 27. t. 46. This plant 

 is said to have the habit of and flowers of O'robus tuberaxus. 

 Two of the angles of the stem arc more winged than the other 

 two, but all ciliated. 



/ncurterf-podded Lathyrus. Fl. Ju. Jul. Clt. 1808. PI. cl. 



59 L. ALA'TUS (Tenore, prod. 42. but not of Smith,) stems 

 tetragonal, winged ; leaflets 6-8, oblong-lanceolate, mucronulate, 

 alternate ; petioles winged ; stipulas lanceolate, unequal, some- 

 what sagittate ; peduncles 2-3-flowered, longer than the leaves ; 

 calycine teeth unequal, shorter than the tube ; legumes com- 

 pressed, flat, many-seeded. Q. H. Native of Italy. Flowers 

 large, purple. This plant comes very near L. Clymenum. 



Winged-stemmed Lathyrus. Fl. Ju. Aug. Clt. 1823. PI. cl. 



60 L. CLY'MENUM (Lin. spec. 1032.) stem tetragonal, winged ; 

 lower petioles dilated, leafless, linear-lanceolate, upper ones 

 bearing 5-6 linear leaflets ; stipulas semi-sagittate, linear ; pe- 

 duncles 1-6-flowered, about equal in length to the leaves ; caly- 

 cine teeth unequal, longer than the tube ; legumes oblong, com- 

 pressed, finely reticulated, with the seminiferous suture tumid ; 

 seeds compressed, variegated. 0. H. Native of the south of 

 Europe. Clymenum uncinatum, Mcench. meth. 150. Flowers 

 blue. There is also a variety having the vexillum red and the 

 wings blue. 



Clear Vetchling. Fl. June, July. Clt. 1713. PI. cl. 



61 L. ARTICULA'TUS (Lin. spec. 1031.) stem tetragonal, winged; 

 lower petioles leafless, linear, acuminated, upper ones bearing 

 5-6 linear leaflets; stipulas lanceolate, semi-sagittate; peduncles 

 1-3-flowered, about equal in length to the leaves ; calycine teeth 

 nearly equal, shorter than the tube ; legumes rather turgid, 

 finely reticulated and nodose at the seeds, having the semini- 

 ferous suture tumid ; seeds compressed, dark purple, rather 

 velvety. 0. H. Native of the south of Europe. Gaertn. 

 fruct. 2. p. 331. t. 152. f. 2. Curt. bot. mag. 253. Tourn. 

 inst. t. 218. Mill. fig. t. 96. Clymenum bicolor, Mcench. 

 meth. 150. Riv. tetr. irr. t. 48. Corolla with a bright red 

 standard, and white wings and keel. 



Articulated-podded Lathyrus. Fl. Ju. Jul. Clt. 1640. PI. cl. 



62 L. AURICULA'TUS (Bert. pi. rar. dec. 2. p. 38.) stem tetra- 

 gonal, winged ; lower petioles leafless, broadly auricled ; upper 

 ones with 5-6 linear leaflets ; stipulas lanceolate, semi-sagittate ; 

 peduncles few-flowered ; calycine teeth unequal ; legumes toru- 

 losc, thickened at the seminiferous suture ; seeds velvety. 

 . H. Native of Italy. L. articulatus ft, auriculatus, Ser. in 

 D. C. prod. 2. p. 375. Flowers purple, but at length becom- 

 ing blue. 



^wn'cu/ate-petioled Lathyrus. Fl. Ju. Jul. Clt. 1800. PI. cl. 



63 L. SPU'RIUS (Willd. enum. 760.) stems winged ; petioles 

 broadly winged, bearing about 4 leaflets, terminating in a 

 branched tendril ; stipulas lanceolate; peduncles 1-flowered; 

 legumes compressed. 0. H. Native country unknown. Per- 

 haps only a variety of L. articulatus. Flowers purplish-blue. 



Spurious Lathyrus. Fl. June, July. Clt. 1815. PI. cl. 



64 L. TENUIFOLIUS (Desf. fl. all. 2. p. 160.) stem simple, 

 tetragonal, winged ; lower petioles leafless, linear, acuminated, 

 upper ones bearing 4 or 6 linear leaflets ; lower stipulas small 

 or wanting, upper ones large, semi-sagittate ; peduncles usually 

 2-flowered, longer than the leaves; calycine teeth unequal, 

 shorter than the tube ; legumes oblong, compressed, glabrous. 

 Q. H. Native of Algiers. Corolla blue, about the size of 

 those of L. sallvus. 



Fine-leaved Lathyrus. Fl. June, Aug. Clt. 1820. PI. cl. 



65 L. PURPU'REUS (Desf. cor. p. 81. t. 61.) stem and petioles 

 winged ; lower petioles leafless, lanceolate ; upper ones bearing 

 4-6 ovate-lanceolate leaflets ; stipulas lanceolate, semi-sagittate ; 

 peduncles 1-flowered, shorter than the leaves. Q. H. Native 



VOL. II. 



of Greece and Candia. L. alatus, Smith, fl. grsec. t. 697. prod. 2. 

 p. 66. ? but not of Tenore. Flowers purple, about the size of 

 those of L. odoratus. 



Purple-fiowered Lathyrus. Fl. June, Aug. Clt. ? PI. cl. 



66 L. CORNU'TUS (Horn. hort. hafn. 686.) stems unknown ; 

 lower petioles leafless, winged, upper ones bearing 4-6, lanceo- 

 late alternate leaflets ; legumes unknown. O- H. Native 

 country unknown. Flowers purple. 



Horned Lathyrus. Fl. June, Aug. Clt. 1818. PI. cl. 

 \ Species not sufficiently known. 



67 L. AMERICA'NUS (Mill. diet. no. 19.) stems procumbent; 

 leaves kidney-shaped, simple, veiny beneath ; peduncles 2- 

 flowered. If. . H. Native of North America. Flowers yellow. 

 Perhaps Baptisia perfoliata. 



American Lathyrus. 



68 L. PARISIE'NSIS (Mill. diet. no. 4.) leaves with many pairs 

 of leaflets; stipulas lanceolate ; peduncles 1-flowered. 0. H. 

 Native country unknown. 



Parisian Lathyrus. Fl. July. Clt.? PI. cl. 



69 L. MAGNOFLORE (Mill. diet. no. 14.) stems winged ; leaves 

 with one pair of ovate-lanceolate leaflets ; peduncles many- 

 flowered. 1(..H. Perhaps only a variety of L. latifdlius. 



Large-flowered Lathyrus. Fl. June, Aug. Clt. ? PL cl. 



70 L. ERE'CTUS (Lag. nov. gen. 22.) leaflets linear ; peduncles 

 awnless, 1-flowered, short ; legumes linear, many-seeded. $ . H. 

 Native about Madrid. 



Erect Lathyrus. PI. 1 foot. 



j" Species only known by name from the catalogues of gardens, 

 which are probably identical with some of those described above. 



1 L. Hallersteinii, Baumg. 2 L. helbdes, Link. 3 L. Ita- 

 licus, Fisch. 4 L. Lusitanicus, Martius. 5 L. Sinensis, Mar- 

 ti us. 



Cult. The greater part of the species of Lathyrus are 

 very handsome when in bloom, the larger kinds are very fit 

 for arbours or shrubberies, and being mostly climbing plants, 

 should be supported by branches stuck in round their roots, or 

 other supports. They all grow in any common soil, and are 

 increased by seeds, and some of the perennial kinds by dividing 

 at the root. 



CLXXIII. O'CHRUS (from wxpe> ochros, yellow ; in refer- 

 ence to the colour of the flowers, which are of a pale yellow). 

 Pers. ench. 2. p. 305. 



LIN. SYST. Diadelphia, Decandria. Calyx campanulate, 

 5-cleft, the 2 superior lobes the shortest and conniving. Sta- 

 mens diadelphous. Vexillum furnished with a tooth on each 

 side. Style flattened, villous in front at the apex. Legumes 

 with a longitudinal membranous wing on each side of seminifer- 

 ous suture, few-seeded. Seeds globular A herb, with bi- 

 foliate tendrilled leaves, and axillary, solitary, cream-coloured 

 flowers and ovate stipulas. 



1 O. PA'LLIDA (Pers. 1. c.) stem prostrate, tetragonal, winged ; 

 petioles winged, lower ones for the most part leafless, upper ones 

 bearing usually 2 leaflets, cirrhiferous; lower stipulas wanting, 

 upper ones ovate ; teeth of calyx rather unequal, length of tube. 

 O. H. Native of the south of Europe. Plsum ochrus, Lin. 

 spec. 1027. Lathyrus ochrus, D. C. fl. fr. 4. p. 578. Tourn. 

 inst. t. 219. Flowers pale yellow. Leaves glaucous. 



Pale-flowered Yellow-pea. Fl.Ju. Aug. Clt. 1790. PI. cl. 1 ft. 



Cult. The seeds of this plant only require to be sown in the 

 open border, in any light soil. 



CLXXIV. O'ROBUS (opo/3oe of Theophrastus and 

 corides, from opw, oro, to excite, and flovt, bous, an ox ; the 

 present genus, however, has nothing to do with the plant of 

 Theophrastus and Dioscorides, which whatever it was, was used 

 Xx 



