37 2 FLORA. 



in fruit. Stamens 1-5. Pericarp separating from the seed. Seed vertical, shining. 

 Embryo a complete ring in the mealy endosperm. [The classical name of orache.J 

 One or perhaps two species, natives of N. Am. and Europe. 



1. BlitumcapitatumL. Strawberry Elite. (I. E. f. 1375.) Stem 1.5-6 dm. 

 long, the branches ascending. Leaves usually longer than wide, 3-8 cm. long, 

 sinuate-dentate, or the upper or sometimes all of them entire, cordate or reniform, 

 lower petioles often longer than the blades ; heads becoming bright red and 

 10-16 mm. in diameter in fruit, and then somewhat resembling strawberries ; seed 

 compressed, ovate. In dry soil, N. S. to Alaska, N. J., 111., Minn., in the Rocky 

 Mountains to Colo, and Utah and to Nev. Also in Europe. June- Aug. 



4. CYCLOLOMA Moq. 



An annual diffusely branched glabrous or cobwebby -pubescent herb, with alter- 

 nate petioled irregularly toothed leaves, and small sessile bractless flowers in 

 panicled interrupted spikes. Calyx 5-lobed, the lobes keeled in flower, a thin 

 horizontal irregularly dentate wing developing below them in fruit. Stamens 5. 

 Styles 2-3. Fruit (except its summit) enclosed by the calyx, depressed. Seed 

 horizontal ; embryo a complete ring in the mealy endosperm. [Greek, circle 

 border, alluding to the calyx-wing.] A monotypic genus of north central North 

 America. 



1. Cycloloma atriplicifolium (Spreng.) Coult. Cycloloma. (I. F. f. 1376.) 

 Pale green or becoming dark purple, bushy-branched 1.5-5 dm. m gh- Leaves 

 lanceolate, mostly acuminate, narrowed into slender petioles, sinuate-dentate with 

 acute teeth, 2-8 cm. long or the upper much smaller ; spikes numerous, loosely 

 flowered ; slender ; fruit, including the winged calyx, 4 mm. broad ; calyx-lobes 

 not completely covering the summit of the utricle, which appears as a 5-rayed 

 area. Along streams and on sand hills and banks, Manitoba to Ind., 111., the N. 

 W. Terr., Neb., and Ariz. Summer. 



5. MONOLEPIS Schrad. 



Low annual branching herbs, with small narrow alternate entire toothed or 

 lobed leaves, and polygamous or perfect flow r ers in small axillary clusters. Calyx 

 of a single persistent herbaceous sepal. Stamen I. Styles 2, slender. Utricle 

 flat, the pericarp adherent to the smooth vertical seed. Embryo a very nearly 

 complete ring in the mealy endosperm, its radicle turned downward. [Greek, 

 single-scale, from the solitary sepal.] Three known species, natives of western 

 N. Am., the following one reaching our limits. 



1. Monolepis Nuttalliana (R. & S.) Greene. Monolepis. (I. F. f. 1377.) 

 Slightly mealy when young, glabrous or nearly so when old ; stem 7-30 cm. high ; 

 branches many, ascending. Leaves lanceolate, short-petioled, or the upper sessile, 

 1-6 cm. long, narrowed at the base, 3-lobed, the middle lobe linear or linear- 

 oblong, acute or acuminate, 2-4 times as long as the lateral ones; flowers clustered 

 in the axils ; sepal oblanceolate or splatulate ; pericarp minutely pitted, about 

 1 mm. broad ; margins of the seed acute. In alkaline or dry soil, Manitoba and 

 the N. W. Terr, to Minn., Neb., N. Mex. and S. Cal. June-Sept. 



6. ATRIPLEX L. 

 Herbs or low shrubs, often scrufy-canescent or silvery. Leaves alternate, or 

 some of them opposite. Flowers dioecious or monoecious, small, green, in panicled 

 spikes or capitate-clustered in the axils. Staminate flowers bractless, consisting of 

 a 3-5 -parted calyx and an equal number of stamens ; filaments separate or united 

 by their bases ; a rudimentary ovary sometimes present. Pistillate flowers sub- 

 tended by 2 bractlets which enlarge in fruit and are more or less united, some- 

 time^ quite to their summits ; perianth none ; stigmas 2. Utricle completely or 

 partially enclosed by the fruiting bractlets. Seed vertical or rarely horizontal ; 

 embryo annular ; endosperm mealy. [From a Greek name of orache.] About 

 130 species, of very wide geographic distribution. Besides the following, some 45 

 others occur in the western parts of North America. 



Annual herbs ; stems or branches erect, diffuse or ascending. 



Leaves hastate, ovate, rhombic-lanceolate or linear lanceolate. 



Plants preen, glabrous or sparingly scurfy, not silvery ; leaves slender-petioled. 

 Leaves lanceolate, several times longer than wide. 1. A. patula. 



