ARENARIA 



ARGEMONE 



93 



ARENARIA (arena, sand, where many of the species 

 grow). Caryophylldcta. Low herbs, mostly with white 

 fls.. usually forming mats, and suitable for rockwork or 

 alpine gardens. Only the perennial species are com- 

 monly cult. Of easiest culture in almost any soil. Prop, 

 by uivision ; also by seeds, and rare species sometimes 

 by cuttings. The species inhabit temperate and cold 

 regions. The stamens are usually 10 ; styles 3 or 4 ; 

 petals ~) as a rule, entire or emarginate. Nearly 200 rec- 

 ognized species. Monogr. by F. N. Williams, Journ. 

 Linn. Soc. 33:326 (1897-8). 



A. Lrs. ovate or lanceolate. 



Balearica, Linn. Very low (3 in. high), with small 

 ovate glossy Ivs. Balearic Is., Corsica. Not hardy in 

 latitude of 'New York City. 



macrophylla, Hook. Sts. decumbent and angled, pu- 

 bescent : Ivs. lanceolate or elliptic, mostly acute : pe- 

 duncles slender, 1-5-fld. Lake Superior to the Pacific. 

 Int. 1881. 



A A. Lvs. linear or awl-like. 

 B. Sepals obtuse. 



Groenlandica, Spreng. Annual : very low, forming 

 mats, the decumbent or erectish sts. bearing 1-5 fls.: 

 Ivs. linear and obtuse, Kin. or less long : sepals and 

 petals blunt, the latter sometimes notched. High alti- 

 tudes and latitudes, but coming to the sea coast in parts 

 of N. Eng., and ranging down the mountains to N. Car. 

 Int. 188-1. A neat little alpine. 



grraminifdlia, Schrad. A foot or less high : Ivs. long 

 and filiform, rough -margined : fls. in 3-forked loose pu- 

 bescent panicles. Eu. 



BB. Sepals pointed or even awned. 



grandiflora, Linn. Variable : 6 in. or less high : Ivs. 

 flat-awl-shaped, 3-nerved and ciliate : fls. solitary or in 

 2's or 3's, long-stalked. Eu. 



montana, Linn. Smaller: Ivs. linear or nearly so: fls. 

 large, solitary, very long-stalked. S. W. Eu. 



v6rna, Linn. (Als\ne verna, Bartl.). Dwarf : 1-3 in. 

 <iigh: Ivs. linear-subulate, flat, strongly 3-nerved, erect: 

 fls. on filiform peduncles, with strongly 3-nerved sepals. 

 Eu. and Rocky Mts. Excellent little rock plant. Var. 

 caespitdsa, Hort.. is a compact, leafy form. 



aculeata, Wats. Sts. 4-6 in. high: Ivs. stiff and sharp, 

 glaucous, fascicled, white, but often purple. W. Amer. 

 Int. 1889. 



Franklinii, Dougl. Sts. 3-5 in. high, nearly or quite 

 glabrous : Ivs. in 3-6 pairs, narrow-subulate, sharp- 

 pointed : fls. in dense cymes at the top of the st. W. 

 Amer. Int. 1881. _ 



L. H. r>. 



ARENGA (derivation doubtful). Palmacece, tribe 

 Arecett. Spineless palms, with the thick caudex clothed 

 above with dead, fibrous leaf-sheaths, at length bearing 

 vigorous shoots. Lvs. terminal, elongated, unequally 

 pinnatisect, the linear or cuneate somewhat petiolate seg- 

 ments praemorse or obliquely divided at the apex ; mid- 

 veins prominent ; nerves parallel ; margins irregularly 

 toothed above the middle, recurved at the base and one or 

 the other of them auricled, pale below : petiole plano-con- 

 vex, with the margin spiny : sheaths short, reticulate- 

 fibrous, the margin crenate : spadix large, with short 

 reflexed peduncle and elongated, slender, pendulous 

 branches ; spathes numerous, attached to the peduncle, 

 membranaceous, deciduous : bracts and bractlets broad : 

 fls. brown or brownish green or purplish : fr. yellow, 

 fleshy. Species 5. Trop. Asia, Malay Archipelago, New 

 Guinea, and Trop. Austral. JARED G> SMITH. 



Arenga saccharifera, in a young state, is surpassed in 

 beauty by most palms. Specimens eight to ten years 

 old, however, show their characteristics well, and from 

 that period till they begin to flower (which they do from 

 the top of the stem downwards in the axils of the leaves ) , 

 they are among the most striking subjects for high and 

 roomy conservatories. The temperature should not be 

 allowed to fall below 55 F. during the coldest weather. 



G. W. OLIVER. 



obtusifAlia, Mart. Trunk 20-30 ft. high, l-l%ft. thick: 

 fronds 9-13, 12-16 ft. long : petiole thickly spiny : seg- 

 ments l%in. apart, 2-3 ft. long, l%-2 in. wide, alternate, 

 lanceolate-linear, unequally acutely dentate, attenuate, 

 2-auricled at the base, the lower auricle the larger, 

 glaucous beneath ; branches of the spadix short, lax, 

 nodding. Java. 



saccharifera, Labill. Trunk 40 ft. high : petioles 

 smooth : segments fasciculate, in 4's or 5's, linear-ensi- 

 form, 1- or 2-auricled at the base, the lower auricle the 

 longer, 2-lobed or variously dentate at the apex, white 

 or silvery beneath ; branches of the spadix long, fas- 

 tigiate, pendulous. Malaya. JARED G SMITH- 



ARETHtTSA (the nymph Arethusa}. Orchidacece. 

 A few species of handsome terrestrial orchids. Fl. gap- 

 ing, the sepals and petals lanceolate and nearly alike, 

 arching over the column. 



bulbosa, Linn. A very pretty hardy orchid, 8-10 in., 

 with one linear, nerved If. and a bright rose-pink fl. on 

 an erect scape, the lip recurved and bearded. Bogs, N. 

 Car., N. and W.; not common. May, June. Mn. 5:141. 

 G.W.F. 17. Requires a moist and shady, cool situation 

 and open, porous soil. A shady nook on north slope of 

 rockery, where it can be watered in dry weather, is an 

 ideal place. Prop, by the solid bulbs. 



J. B. KELLER. 



ARETIA. See Douglasia. 



ARGEMONE (fanciful name). Papaveracece. ARGE- 

 MONY. A few American plants, mostly herbs, with prickly 

 sepals and pods, 3-6-lobed stigma, coarse often white- 

 spotted foliage, and yellow juice. Annuals, or cult, as 

 annuals. Easy to manage from seeds sown where the 

 plants are to stand, or transplanted from pots. They 

 need a light soil and full sunny exposure. Monogr. by 

 Prain, Journ. Bot. 33: 207 et seq. 



A. Fls. yellow or yellotvisJi. 



Mexicana, Linn. (A . specibsa , Hort. ) . PRICKLY POPPY. 

 Fig. 136. A moderately prickly-stemmed herb, 1-2 ft. 

 high, sprawling, glaucous : Ivs. coarsely sinuate-pin- 



136. Argemone Mexicana (X %). 



natifid : fls. sessile or nearly so, the petals obovate and 

 an inch or less long, orange or lemon-colored. Trop. 

 Amer., but naturalized in E. and S. states and in the 

 Old World. B.M. 243. 



Var. ochroleuca, Lindl. Petals yellowish white, and 

 style longer. Tex. B.R. 1343. 



