
Crassulaceae 193 

sepals distinct and imbricated. Petals 5, hypogynous, distinct or slightly united at base. 
Stamens 4—20, hypogynous or perigynous, anthers versatile. Ovary free (ours) or its 
base adherent to the calyx, globose or ovoid, |—5-celled; styles |—5 and simple to 
2-parted. Capsule loculicidal. Seeds several to many. 
DROSERA SUNDEW 
Plants of peat-bogs,. often reddish. Leaves with glandular hairs which hold in- 
sects. Flowers in scapose racemes. Calyx deeply 4—8-parted. Petals spatulate. 
Stamens 5. Ovary I|-celled; styles 2—5, distinct or united at base, often deeply 2- 
parted so as to appear twice as many, or fimbriate. Capsule 3—5-celled. Seeds many. 
(Gk. droseros—dewy ; the leaf-glands exude drops of clear liquid.) 
A. Leaf-blade not longer than wide, orbicular or transversely elliptical. W. E. 
D. rotundifolia L. (Round-leaved Sundew) 
AA. Leaf-blade much longer than wide, linear to obovate-spatulate. C. (D. longi- 
folia for our region. ) D. anglica Huds. (Long-leaved Sundew) 
CRASSULACEAE Stone-crop Family 
Herbs or somewhat shrubby, mosily fleshy. Leaves alternate or opposite, fleshy; 
t 
stipules none. Flowers cymose, or rarely racemose or solitary, regular, symmetrical, most- 
ly perfect. Calyx persistent, mostly 4—5-parted or -lobed. Petals as many as the calyx- 
segments, distinct or somewhat united, usually persistent, rarely none. Stamens as many 
- or twice as many as the petals. Carpels as many as the sepals, superior, distinct or united 
below, each usually from the axil of a scale; styles thread-like or awl-shaped. Fruit a 
follicle, |-celled, opening along the inner edge. Seeds minute, rarely |—few, usually 
numerous, in 2 rows. 
A. Leaves opposite. 
B. Flowers solitary in the leaf-axils; leaves 2—6 mm. long; petals greenish, not 
over 2 mm. long. TILLAEASTRUM (p. 193) 
BB. Flowers clustered in the leaf-axils; leaves 1.5—-3 mm. long; petals greenish, 
about | mm. long. -FILUAEA, .(p.2 (93) 
BBB. Flowers in terminal cymes; leaves 5-8 mm. long; petals yellow, about 6 mm. 
long. SEDUM (p. 194) 
AA. Leaves alternate. 
C. Petals more or less united. 
LD. Corolla tubular, yellow, its lobes erect; basal leaves acute. 
DUDLEYA (p. 194) 
DD. Corolla short-campanulate or rotate, yellow or red, its lobes spreading; basal 
leaves obtuse. GoRMANIA (p. 194) 
CC. Petals distinct. SEDUM (p. 194) 
TILLAEA PIGMY-WEED 
Annual, glabrous, minute. Leaves opposite, entire. Flowers very small, axillary, 
clustered. Calyx 3—5-parted. Petals distinct or united at the base. Carpels distinct, 
1—2-seeded. (Honor of M. A. Tilli, an Italian botanist.) U.C. (7. minima.) 
T. erecta H. & A. 
TILLAEASTRUM PIGMY-WEED 
Annual, glabrous, small or minute, sometimes aquatic. Leaves opposite, entire. 
Flowers axillary, solitary, very small. Sepals mostly 4, distinct. Petals distinct or 
