304 Plumbaginaceae 
DD. Filaments united into a tube at least 14 as long as the anthers. 
G, Filaments black; capsule opening by a lid. C. 
D. alpinum Gr. 
GG. Filaments yellow; capsule opening by valves from the tip. 
Hi. Invelucre-bracts oblong to spatulate; anthers about equalinz the stamen- 
tube; cagsule splitting into halves. E. 
D. salinum Nels. 
HH. Invelucre-bracts lanceolate; anthers at least twice as long as the 
stamen-tube, capsule opening by 5 short teeth, W.E. (D. vulgare.) 
D. paucifiorum Gr. 
CC. Leaves net entire. 
J. L.caves dentaie, ovate, 5—10 cm. long; petals white, each with 2 purple spots 
at base; capsule opening by valves from the tip. C. E. 
D. dentatum Hock. 
II. Leaves crenate, longer for their width, 12—25 cm. long; petals purple 
thruout; capsule opening by a lid. W.C.E. (D. viviparum.) 
D. jeffreyi VanH. 
BB. Herbage puberulent or viscid-puberulent. 
J. Filaments yellow; united into a tube; capsule opening by valves from the tip. E. 
(D. puberulum.) D. cusickii Gr. 
JJ. Filaments black, not united; capsule opening by a lid. E. 
D. viscidum Pip. 
PLUMBAGINACEAE (Armeriaceae) Lead-wort Family 
Herbs, erect, perennial. Leaves basal and tufted (ours). Flowers small, perfect, 
regular, clustered. Calyx tubular or funnelform, 5-toothed; tube 5—15-ribbed (ours 
10). Petals 5, distinct or nearly so, clawed. Stamens 5, opposite the petals, hypogynous. 
Ovary superior, |-celled; styles 5, separate or united. Fruit a utricle (ours) or akene or 
rarely dehiscent, enclosed by the calyx. Seed |. 
STATICE (Armeria) 
Scapes slender, mostly naked, 1—5 dm. high (ours). Leaves persistent, narrow, 
without petiole; in ours |-veined, fleshy, linear, entire, 25-75 mm. long. Flowers short- 
pedicelled or sessile, in heads; heads dense, terminal, subtended by scarious bracts, the 
lower bracts forming a sort of involucre to the head, the 2 lowest bracts reflexed end 
more or less united into a sheath. Calyx scarious. Petals in ours white or pink or 
purple. Filaments adherent to petal-bases. Styles united at base. (Gk. statizo=to 
stop; thought to cure diarrhoea.) W. (A. vulgaris.) 
S. armeria L. (Thrift) 
OLEACEAE Olive Family 
Trees (ours) or shrubs. Leaves opposite (ours) or rarely alternate, simple or odd- 
pinnate (ours); leaflets 5—-7 (ours), entire (ours) or dentate; stipules none. Flowers 
regular, perfect or polygamous or dioicous (ours); in terminal or axillary panicles or 
cymes or fascicles. Calyx small (ours) or none. Corolla gamopetalous or polypetalous 
or none (ours). Stamens 2—4, on the corolla; filaments usually short. Ovary superior, 
2-celled; cells few-ovuled. Fruit a capsule or samara (ours) or berry or drupe. 

