PRIMROSE FAMILY 185 
(b) 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 
(®) Corolla yellow. Sterile appendages alternating with the 
stamens. Steironema, IV 
(¢) Corolla white. Stems with leaves mostly whorled near the 
summit. Trientalis, V 
(2) 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, 
splitting at the top into 5 valves, each of which may divide 
in halves. 
1. P. grandiflora Lam. Trurz 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. CHinese 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. 
Ul. 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 
