PRIMROSE FAMILY 185 
(2) As in (a), but throat of corolla narrowed. Androsace, IT 
(c) Segments of corolla much reflexed. Stamens protruding. 
Dodecatheon, VIII 
B 
Stems leafy, at least near the summit. 
(a) Corolla yellow. No sterile appendages alternating with the 
stamens. Lysimachia, III 
(b) Corolla yellow. Sterile appendages alternating with the 
stamens. Steironema, IV 
(c) Corolla white. Stems with leaves mostly whorled near the 
summit. Trientalis, V 
(d) Corolla scarlet (sometimes white or blue). Stems low, leafy 
throughout. Anagallis, VI 
(e) Corolla inconspicuous, pink. Stems leafy, very short. 
Centunculus, VII 
I. PRIMULA L. 
Low, perennial herbs, with much-veined basal leaves ; scapes 
each bearing an umbel of flowers, which are often showy. Calyx 
tubular, decidedly angled, 5-cleft. Corolla more or less salver- 
shaped, with the tube widened above the insertion of the sta- 
mens; the 5 lobes of the limb often notched or cleft. Stamens 
5, not protruding outside the corolla tube. Capsule egg-shaped, 
spltting at the top into 5 valves, each of which may divide 
in halves. 
1. P. grandiflora Lam. True Primrose. Leaves spatulate or 
obovate-oblong. Flowers rising on separate slender pedicels from 
the leaf axils. Corolla originally pale yellow, but varying to white, 
red, and many intermediate shades, with a broad, flat limb. Culti- 
vated from Europe. 
2. P. sinensis Sabine. Cninese Primrose. <A rather coarse, 
downy plant. Leaves round-heart-shaped, more or less lobed and 
cut, long-petioled. Flowers large, in umbels, usually rose color or 
white. Calyx large, inflated and conical. Cultivated as a house 
plant from China. 
Il. ANDROSACE L. 
Small herbs, with clustered basal leaves. Flowers very small, 
solitary or umbeled. Calyx 5-cleft, with a short tube. Corolla 
salver- or funnel-shaped, contracted at the throat, its tube 
