OLEACEAE. 287 



on a naked scape but subtended by a reversed sheath; calyx 

 scarious, funnelform; corolla of 5 nearly distinct long-clawed 

 petals; stamens 5, on the bases of the petals; styles 5, filiform, 

 free or united only at the base, glabrous or delicately plumose 

 below, stigmatic on the inner side; fruit a utricle. 



Statice armeria L. Thrift. Perennial, tufted; leaves numerous, narrow, 

 linear, 3-6 cm. long; scapes 10-30 cm. high; bracts scarious, obtuse; calyx-tube 

 10-nerved, pubescent, the lobes cuspidate; corolla pink. 



In sandy or gravelly soil, British Columbia to California. 



Family 78. OLEACEAE. Olive Family. 



Trees or shrubs with opposite pinnate or simple leaves ; flowers 

 usually in racemes or panicles; calyx gamosepalous and 4-cleft, 

 toothed, or entire, or none; corolla 4-merous, gamopetalous or 

 polypetalous, or none; stamens usually 2; ovary 2-celled, with 2 

 ovules in each cell. 



397. FRAXINUS. Ash. 



Large trees with petioled pinnate leaves; flowers in crowded 

 panicles or racemes from the axils of leaves of the previous season , 

 dioecious, polygamous or monoecious ; calyx small and 4-cleft, or 

 entire, or none; petals none; stamens usually 2; anthers large; 

 style 1; stigma 2-cleft; fruit 1-2-celled flattened, 1-2-seeded. 



Fraxinus oregana Nutt. Oregon Ash. Tree, 20-40 m. high; bark pale, 

 longitudinally ridged; leaflets 5-7, oval or oblong-lanceolate, acuminate, 

 entire, 5-10 cm. long; flowers dioecious, appearing with the leaves; fruit ob- 

 lanceolate, 2-3 cm. long. 



In low ground, common. 



Family 79. GENTIANACEAE. Gentian Family. 



Mostly herbs; leaves entire, opposite, sessile, without stipules; 

 flowers perfect, regular, solitary or clustered; corolla gamo- 

 petalous, 4-12-parted; stamens as many as the corolla-lobes and 

 alternate with them, epipetalous; ovary 1-celled, with 2 parietal 

 placentae; fruit a capsule, usually 2-valved; seeds numerous; 

 endosperm copious. 



Style filiform, usually decidous; anthers oblong to 



linear, mostly twisting or curving with age. 398. Centaurium, 287. 



Style stout and persistent or none; anthers remaining 



straight. 399. Gentiana, 288. 



398. CENTAURIUM. 



Low branching annual herbs; leaves sessile or clasping; flowers 

 white or reddish; calyx 4- or 5-parted; corolla funnel or salver- 



