1136 



ERIOSTEMON 



plenty of breaks, and also keep red-spider in check. 

 A favorite method of propagation in the British Isles 

 is by grafting on small plants of Correa alba. This 

 insures a quicker means of raising the plants and is 

 practised largely by nurserymen. A winter tempera- 

 ture of 40 by night should be maintained. However, 

 if plants are wanted to flower earlier, they may be sub- 

 jected to 50 or 55. Eriostemons are sometimes 

 attacked by brown and white scale. Fumigation with 

 hydrocyanic gas is the best remedy. (George F. 

 Stewart.) 



A. Foliage linear or narrowly lanceolate. 



B. Lvs. linear. 



scaber, Paxt. A shrub with minutely pubescent or 

 glabrous branches: Ivs. covered with minute rough- 

 nesses, sessile, acute and mucronulate: petals white, 

 tipped pink. P.M. 13:127. 



BB. Lvs. narrowly lanceolate. 



linifolius, Seghers. Lvs. broadest at middle, tapering 

 both ways. R.B. 20:97. Probably an old garden form 

 of some well-known species. 



affinis, Sprague. Shrub, 1-2 ft., the branches gla- 

 brous and shining: Ivs. sessile, linear-lanceolate, 1-2 

 in. long, glabrous: fls. in axillary slender clusters, 

 quite like the next, but smaller. 



AA. Foliage conspicuously wider. 

 B. Lvs. 10-12 times as long as broad. 



c. Apex abruptly pointed. 



myoporoides, DC. Lvs. widest at the middle, taper- 

 ing evenly both ways, 1-3, rarely 4 in. long: fls. umbel- 

 late; petals white or sometimes pink, glandular on the 

 back. B.M. 3180. 



cc. Apex blunt. 



salicifolius, Smith. This willow-leaved species has 

 perhaps the handsomest foliage. Lvs. widest above the 

 middle, tapering more gradually to the base than to the 

 apex: petals bright, soft pink. B.M. 2854. 



BB. Lvs. 3-4 times as long as broad. 



intermedius, Hook. Lvs. 9-18 lines long, elliptical, 

 abruptly pointed: petals lanceolate, white, but tipped 

 with pink outside in the bud like the rest; ovary placed 

 on a flat disk and not ringed at the base. Probably of 

 garden origin. Intermediate between E. myopormdes 

 and E. buxifolius. B.M. 4439. 



buxifolius, Smith. Lvs. as in E. intermedius, though 

 perhaps smaller: petals obovate, white, tipped pink; 

 ovary sunk into a double disk of 2 rings. B.M. 4101. 

 G. 26:19. E. densifldrus, Seghers, R.B. 20:97, looks 

 like a prolific horticultural variety of this species. 



WILHELM MILLER. 



N. TAYLOR, f 



ERITRf CHIUM : For E. barbigerum, see Krynitzkia. For 

 E. nothofulvum, see Plagiobothrys. 



ERLANGEA (bears the name of the University of 

 Erlangen). Compdsitx. One species of this genus, 

 blooming in midwinter and spring, is offered in England. 



The genus was long considered to be monotypic, 

 but Moore has recently (Jour. Bot. 46. 1908) incor- 

 porated Bothriocline with it, and the new species have 

 expanded the genus to 32 species, all Trop. African 

 excepting 1 in New Guinea; it differs from Vernonia 

 "only in the curious reduced achenes and the pappus 

 of few, short, very caducous set*." E. tomentdsa, 

 Moore (Bothrioclme Schimperi var. tomentbsa, Oliv. & 

 Hiern). Shrub, to 5 ft.: st. and under sides of Ivs. 

 tomentose: erect herb: Ivs. opposite or at top of st. 

 rarely alternate, oblong to ovate-lanceolate, 2-5 in. 

 long, nearly or quite obtuse, rounded at base, serrate, 

 villous: fls. all tubular, about 40 in the head, the heads 

 about %in. diam., short-pedunoled and collected in 



corymbose panicles; involucre-scales ovate, acute, 

 scarious-margined. Trop. Afr. B.M. 8269. Foliage 

 scented: fls. mauve or lilac, lasting 2 or 3 months in 

 winter; habit of a eupatorium, and requires the treat- 

 ment given the greenhouse members of that genus. 



L. H. B. 



ERODIUM (Greek, a heron; alluding to the beaked 

 fruit). Geraniacese. HERON'S-BILL or STORK'S-BILL. 

 Annual and perennial, some of the perennials grown 

 in flower-gardens and with alpines for their finely cut 

 foliage and mostly purplish or white flowers. 



The plants suggest the wild and hardy geraniums, 

 from which they differ in having only 5 instead of 10 

 anther-bearing stamens, the other 5 being reduced to 

 scales; also the tails of the carpels hairy inside and 

 twisting spirally. Herbs, rarely somewhat woody or 

 tufted: Ivs. opposite or alternate, one often smaller 

 than its mate, stipuled, toothed, lobed, or dissected: 

 fls. regular or nearly so, mostly in umbels, of various 

 shades, from crimson-pink to purple, with darker 

 blotches on the 2 upper petals and the venation out- 

 lined in darker shades; sepals 5, imbricate; ovary 

 5-lobed, when ripe splitting into separate caps.-lobes, 

 each lobe 1-seeded: plants usually heavy-scented. 

 The latest monograph (Knuth, in Engler's Pflanzen- 

 reich, hft. 53, 1912) describes 60 species, widely dis- 

 persed in temperate and" warm regions. The self- 

 planting of the seeds or carpels of some species is very 

 interesting. 



These plants are chiefly for the front row of the 

 hardy borders and the rock-garden, where they thrive 

 in a gritty loam. They like dry, sunny spots, and may 

 be trusted with a conspicuous position, being chiefly 

 valued for their steady succession of bloom from June 

 to August. Divided plants are chiefly sold here, but 

 the species are easily propagated by seeds. Some 

 erodiums can be grown in chinks of walls. Some of the 

 annual kinds are widely spread in California and other 

 parts of the West, and E. cicutarium and two or three 

 others are grown for forage. The garden species have 

 not attained much prominence in this country. 



INDEX. 



A. Plant annual (or biennial). 



1. cicutarium, L'Her. ALFILARIA. ALFILERILLA. 

 PIN-CLOVER. Tufted, low and spreading, more or less 

 glandular, often with coarse, soft, short hairs: Ivs. 

 oblong, 1-2-pinnate; Ifts. small, nearly sessile, the 

 uppermost confluent, lower ones sharply and deeply 

 cut and with narrower lobes: stipules small, acute: 

 sepals with 1 or 2 terminal bristles; filaments not 

 toothed; fls. rose-purple. Abundantly run wild from 

 the Rocky Mts. to the Pacific, on dry or barren lands, 

 and also grown for hay and utilized as wild pasture. 

 Feb.- Apr. Old World; immensely variable. 



2. moschatum, L'Her. FILAREE. MUSK-CLOVER. 

 Also ALFILERILLA. Glandular and musk-scented, at 

 first stemless and with a rosette on the ground but 

 later sending up stout fleshy sts. to, 1 ft.: Ifts. large, 

 short-stalked, ovate to elliptical, serrate, broad-lobed: 

 stipules large, rather obtuse: sepals not terminated by 

 bristles; filaments 2-toothed; fls. rose-purple. Medit., 

 Orient. Run wild in Calif, in the rich valley lands. 



3. B6trys, Bertol. Branching from the base and 

 usually prostrate, white-pubescent: If .-blades 1-2 in. 

 long on petioles of similar or twice the length, oblong- 

 ovate, pinnatifid, the lobes acute and serrate: sepals 

 with 1 or 2 short bristles; fls. deep violet; filaments 



