DICOTYLEDONOUS PLANTS. sit 
IV. LATHYRUS, SWEET PEA, WILD PEA. 
Herbs, climbing by means of tendrils which terminate the 
petiole (as in Fig. 159). Leaves of 1 to several pairs of 
leaflets. Peduncles axillary, bearing 1 to several flowers, 
which are often very showy. Calyx bell-shaped. Stamens 
diadelphous (Fig. 161, 1). Corolla decidedly papilionaceous 
(Fig. 159). Style flat, bent at a right angle, hairy along the 
inner side. Pod several-seeded (Fig. 161, I, II). 
a. (L. OpoRATUS), SweeT PEA. Stem'roughish-hairy, it and the 
petioles winged, leaflets only one pair, oval or oblong (Fig. 111); 
flowers large, 2 or 3 on the long peduncles, sweet-scented, white, rose- 
color, purple, or variegated. Annual, cultivated from Europe. 
b. (L. MARITIMUS), Beacn Pea. Stem stout, 1-2 ft. high; stipules 
broadly ovate and heart or halberd shaped, nearly as large as the 6-12 
leaflets, of which the lower pair is the largest; tendrils much as in the 
sweet pea; flowers large, blue or purple. A seashore perennial herb. 
ec. (L. PALUSTRIS.) Stem frequently winged, slender, and climbing 
by delicate tendrils at the ends of the leaves; stipules narrow and 
pointed; leafiets 4-8, narrowly oblong to linear, acute; peduncles 
bearing 2-6 pretty large, drooping, blue, purple, and white flowers. 
EUPHORBIACEZA, SPURGE FAMILY. 
Plants usually with a milky, more or less acrid and some- 
times poisonous juice and mostly apetalous, moncecious or 
dicecious flowers; the ovary usually 3-celled, with one or 
two ovules in each cell; stigmas as many as the cells or 
twice as many; fruit a 3-lobed capsule; seeds containing 
fleshy or oily endosperm (Fig. 1). Most of the family are 
natives of hot regions, many of them of peculiar aspect from 
their adaptation to life in dry climates (Fig. 89). The family 
is too difficult for the beginner in botany to determine many 
of its genera and species with certainty. 
MALVACEZ, MALLOW FAMILY. 
Herbs or shrubs with simple, alternate, palmately-veined 
leaves, with stipules. Flowers regular, with 5 sepals, often 
surrounded by an involucre at the base, 5 petals, numerous 
