762 Convolvulaceae. 
enveloping the calyx. Calyx glabrous, 6 mm long; sepals ovate, ob- 
tuse or minutely mucronate, the two outer ones larger than the three 
inner ones and rounded at the base. Corolla broadly campanulate, 
nearly 2,5 cm long and broad. Filaments dilated at the base. Ovary 
oblong, 1-celled. Stigmas lanceolate. — Flow. January. 
M. ma. Ramle, only two specimens, naturalized. — N.d. Sparingly 
cultivated in fields. 
Also known from Tropieal Africa, India and China. 
436. (4.) Convolvulus L. 
Sepals generally subequal, obtuse or acute. Corolla funnel- 
shaped, colour various, midpetaline areas not well defined, passing 
gradually into the sepaline areas. Stamens inserted low down in 
the corolla-tube; filaments generally unequal, filiform. Ovary 2-celled, 
4-ovuled; style filiform; stigmas two, filiform. Capsule 2-celled, 
usually 4-valved, 4-seeded. Seeds black or brown, glabrous, or 
pubescent, sometimes tuberculate; cotyledons broad, plicate. — Herbs 
or shrubs with climbing, prostrate or erect stems. Leaves simple. 
Flowers solitary, in few-flowered cymes or in dense involucrate heads. 
A. Perennials. 
I. Shrubby plants with spinescent or per- 
sistent twigs. Ovary glabrous. 
a) Flowers sessile. 
1. Flowers solitary or 2—8 together 1. C. Hystrix. 
2. Flowers clustered, in interrupted 
spikes 20 2. C. lanatus. 
b) Flowers pedicelled. ...-+.... #8. C. Doryenium. 
iJ. Unarmed plants. 
a) More or less shrubby plants. 
Ly; Ovary thirsutesy hs ose tgs). pF -be uC. linemiaey 
2. Ovary villous..). ... e)- =... «) 5. C, olesefelius. 
b) Woolly, at length rusty, stems thickened. 
1. Corolla as long as or a little longer 
than the calyx). . 2s). ts) 6C. Schimper 
2. Corolla 24/, times longer than the 
calyx . 7. C. secundus. 
e) Slender herbaceous plants. 
1. Not climbing. 
a) Flowers pedicelled .. .. . . 8. C. pilosellaefolius 
6) Flowers sessile. . ..... . 9. C, mierophyllus. 
2. Climbing’ plants. 
