Equisetum

(from the Latin equus, horse, and seta, bristle). Equisetaceae. Contains the weeds known as horse-tails, or scouring-rushes which are suitable for naturalizing in waste and wettish places and help to hold sandy banks. The following have been advertised by dealers in native plants: E. arvense, E. hiemale (Fig. 1404), E. Iaevigatum, E. limosum, E. pratense, E. robustum, E. scirpoides, E. sylvaticum, E. variegdtum. For descriptions, consult the manuals of native plants. They grow usually in moist or swale-like places. They are flowerless plants, allied to ferns and club-mosses.

Equisetum hiemale.   Common scouring  rush.

Fig. 1404. Equisetum hiemale. - Common scouring- rush.

Of the species named above, E. arvense has been found to have a poisonous effect on grazing stock when it occurs in any quantity in hay or pasturage.

R. C. Benedict.†

Ercilla

(Peruvian name). Phytolaccaceae. One twining shrub from Peru and Chile, apparently not in the trade but sometimes cult, in this country for its dense spikes of pale purple flowers and dark purple berries. By some it is united with Phytolacca, from which it differs in habit, the coriaceous evergreen leaves, larger bracteoles and technical characters of the flower E. volfi-bilis, Juss. (E. spicata, Moq. Bridgesia spicata, Hook. & Arn. Phytolacca volubuis, Heiml.), has alternate, petioled, ovate-cordate or oblong or orbicular leaves 1-2 in. long: flowers perfect, in spikes 1-1 3/4 in. long, the perianth 5-parted, segments oblong and obtuse;.stamens 8-10, with filiform fleshy filaments, the alternate ones being snorter: carpels 4-8, somewhat impressed in the torus, becoming as many ovoid berries. G.C. II. 9:653. Said to be excellent for covering walls, and climbs by aerial rootlets. It is easily prop, by seeds and cuttings.

L. H. B

Eremospatha

(solitary spathe). Palmaceae. Above a half-dozen tropical African climbing palms, with long slender ringed ste. and pinnate leaves Apparently none is in the trade. The flowers are perfect; calyx 3-toothed, campanulate; corolla urn-shaped, with 3 short lobes; stamens 6, with broad connate filaments; ovary 3-celled, and stigmas 3: fruit berry-like: lfts, alternate and opposite: rachis spiny,with a long tendril at end.

Eria

(from Greek for wool, as the leaves of some species are downy or woolly). Orchiddceae. About 100 species of tropical Asian orchids allied to Dendrobium but with eight rather than two or four pollinia, of most diverse habit, and very little in cultivation outside the collections of botanic gardens and fanciers, being mostly curious and botanical rather than beautiful. They require warmhouse treatment, after the manner of stanhopeas.

Erigenia

(Greek, spring-born). Umbelliferae. Har-binger-of-Spring. A monotypic genus of E. N. Amer. E. bulbosa, Nutt., is low (4-10 in.), nearly stemless, hardy, from a deep-lying tuber, with ternately decompound leaves and small umbels of minute white flowers A few plants may have been sold by collectors and dealers in native plants, but it is not a cult, plant. It grows in rich deciduous woods and clearings.