178 PLUMBAGINACEAE (LEADWORT FAMILY) 



FF. Leaves 5-12 cm. long; scape 1-2 dm. long. C. E. D. conjugens 



FFF. Leaves 20-30 cm. long; scape 4-6 dm. long. E. D. dispai 



DD. Filaments united into a tube at least 5 as long as the anthers. 

 G. Filaments black; capsule opening by a lid. C. D. alpinum 



GG. Filaments yellow; capsule opening by valves from the tip. 

 H. Involucre bracts oblong to spatulate; anthers about equaling the stamen 

 tube; capsule splitting into halves. E. D. salinum 



HH. Involucre bracts lanceolate; anthers at least twice as long as the stamen 

 tube; capsule opening by 5 short teeth. W. E. D. pauciflorum. 



CC. Leaves not entire. 



I. Leaves dentate, ovate; petals white, each with 2 purple spots at base; capsule 

 opening by valves from the tip. C. E. D. dentatum 



II. Leaves crenate, longer for their width; petals Jiurple throughout; capiule 

 opening by a lid. W. C. E. D. Jeffrey! 



BB. Herbage puberulent or viscid-puberulent. 

 J. Filaments yellow, united into a tube; capsule opening by valves from the tip. 

 E. D. cuslckil 



JJ. Filaments black, not united; capsule opening by a lid. E. D. viscidum 



PLUMBAGINACEAE (Leadwort Family) 



Herbs, perennial. Leaves basal and tufted, i -veined, fleshy, 

 linear, entire. Flowers perfect, regular, in heads. Calyx tubular 

 or funnelform, 5-toothed; tube lo-ribbed. Petals 5, distinct or 

 nearly so. Stamens 5, opposite the petals, hypogynous. Ovary 

 superior, i -celled; styles 5, united at base. Fruit a utricle. Seed 

 I. W. — (Gk. statizo = to stop; thought to cure diarrhoea.) 



Statice armeria (thrift) 



OLEACEAE (Olive Family) 



Trees. Leaves opposite, odd-pinnate; leaflets 5-7, entire; stipules 

 none. Flowers regular; dioecious, fascicled. Calyx small, 4-cleft. 

 Corolla none. Stamens 2-4. Ovary superior, 2-celled. Fruit a 

 samara, i-winged. W. C. E. — (Gk. phraxis = a separation; be- 

 cause the wood splits easily.) Fi-axinus oregana (OREGON ASHJ 



GENTIANACEAE (Gentian Family) 



Herbs, bitter. Leaves opposite, or rarely whorled or alternate, 

 entire or nearly so; stipules none. Flowers regular, perfect, vari- 

 ously arranged. Calyx persistent 4-12-toothed or -divided. 

 Corolla gamopetalous; lobes as many as the sepals. Stamens as 

 many as corolla lobes, alternate with them, on the tube or throat. 

 Ovary superior, i-celled or partly 2-celled; style o-i; stigmas 

 1-2. Seeds many. 



