100 NORTH AMERICAN FLORA [Vorumy 21 
Flowers perfect; filaments united at the base. 
Seeds not arillate. 3. LaGREZIA. 
Seeds arillate. 4. CHAMISSOA. 
Flowers polygamous or dioecious. 
Pistillate flowers with a perianth of 1-5 sepals. 5. AMARANTHUS., 
Pistillate flowers without a perianth. 
Bracts small and inconspicuous, not foliaceous, scarcely if at all exceed- 
ing the flowers , utricle usually indehiscent, rarely circumscissile. 6. AcNIDA, 
Bracts large, foliaceous, complicate, several times longer than the 
flowers; utricle circumscissile. 7. ACANTHOCHITON. 
3. LAGREZIA Mog. in DC. Prodr. 13?: 252. 1849. 
Erect or dectumbent herbs or shrubs, with branched stems. Leaves alternate, petiolate, 
entire. Flowers perfect, bracteate and bibracteolate, sessile or subsessile, arranged in terminal 
and axillary, simple or paniculate spikes; perianth scarious, 5-parted, the segments equal, 
erect, glabrous. Stamens 5, the filaments united at the base into a short cup; anthers 4-celled. 
Ovary 1-ovuled, the ovule erect on an elongate funicle; style short; stigmas 2 or 3, spreading or 
recurved. Utricle circumscissile, included in the perianth. Seed erect, lenticular, the testa 
erustaceous; embryo annular, surrounding the farinaceous endosperm; radicle inferior. 
Type species, Celosia madagascariensis Poir. 
1. Lagrezia monosperma (Rose) Standley, Jour. Wash. Acad. Sci. 5: 
393. 1915. 
Celosia ? monosperma Rose, Contr. U.S. Nat. Herb. 1: 352. 1895. 
Shrub 2~5 m. high; branches slender, smooth, glabrous; leaves numerous, the upper 
somewhat reduced, the petioles slender, 1—-2.5 cm. long, the blades 5-12 cm. long, 1.5-5 cm. wide, 
ovate to lanceolate, acute or acuminate at the apex, abruptly acute or acuminate at the base, 
often slightly decurrent, yellowish-green, glabrous; inflorescence a terminal compound panicle 
1-3 dm. long and of the same width, composed of very numerous sessile flowers in slender 
flexuous spikes 1-3 cm. long and 4-7 mm. in diameter, the rachises of the inflorescence puberu- 
lent; bracts ovate, acute or acuminate, one third to one half as long as the sepals, thin, stramine- 
ous, carinate; sepals oblong or oval, 3 mm. long, acute or obtuse, stramineous, finely nerved, 
carinate; filaments slender, nearly equaling the sepals, the sinuses between their bases rounded; 
style very short, exceeded by the 2 stout recurved stigmas; utricle ovoid, much shorter than 
the sepals; seed 1 mm. in diameter, reddish-brown, smooth, shining. 
TYPE Locality: Mountains near Manzanillo, Colima. 
DIstTRisvutTION: Southwestern Mexico. 
4. CHAMISSOA H. B. K. Noy. Gen. & Sp. 2: 196. 1817. 
Kokera Adans. Fam. Pl. 2: 269, hyponym. 1763. 
Erect or climbing, pubescent or glabrous herbs or shrubs. Leaves alternate, petiolate, 
the blades broad. Flowers perfect, or sometimes monoecious, abortive stamens present in 
the pistillate flowers and an abortive ovary in the staminate flowers, each flower subtended 
by usually 3 bracts; inflorescence of few or many, axillary or terminal, simple or paniculate, 
loosely or densely flowered spikes; sepals 5. Stamens 5, connate into a cup at the base; anthers 
4-celled, ovoid; filaments subulate; staminodia none. Ovary 1-ovuled; style short or elongate; 
stigmas 2, short or elongate. Utricle thin-walled, dehiscent at or below the middle, circum- 
scissile, surrounded by the persistent calyx. Seed vertical, reniform-lenticular, involved in a 
well developed aril, or the aril minute; endosperm central; embryo annular; radicle superior. 
Type species, Achyranthes altissima Jacq. 
Style short, much shorter than the stigmas; spikes paniculate; aril completely 
enclosing the seed. : 1. C. altissima. 
Style elongate, longer than the stigmas; spikes mostly axillary, simple; aril 
minute. 2. C. Maximiliani. 
