Part 5, 1924] POLYGALACEAE 



Plant annual; leaves very narrowly lanceolate; fruit strongly com- 

 pressed, samaroid, nearly as broad as long; stamens 6. 1. M. Wrightii. 

 Plant frutescent; leaves lanceolate to oval; fruit ovoid, plump, drupace- 

 ous; stamens 8. 

 Racemes not at all comose; bracts ovate, obtuse to acute, 1.2-2.5 

 mm. long. 

 Leaves coriaceous; lower sepals united for two-thirds their length. 

 Leaves not coriaceous; lower sepals free. 



Peduncles and young branches densely pilose-tomentose. 

 Peduncles and young branches not pilose-tomentose. 



Sepals triangular-ovate to oblong-ovate, not broader than 



long; branches strigillose. 

 Sepals oblate-orbicular to ovate-reniform, much broader 

 than long; branches short-strigose and spreading-pilose 

 with straight hairs. 

 Racemes more or less comose toward apex; bracts lance-subulate to 

 ovate, acuminate to attenuate, 2.5-7 mm. long. 

 Lower sepals united for half to two-thirds their length. 

 Lower sepals free. 



Bracts ovate to lance-ovate, 2.5-3 mm. long; pedicels 2-3 mm. 

 long; leaves sparsely strigillose on surface beneath, along 

 costa spreading-pilose with short hairs. 

 Bracts lance-subulate or rarely lance-ovate, 4—7 mm. long; 

 pedicels 1-2 mm. long; leaves otherwise. 

 Stem and leaves not spreading-pilosulous or hirsutulous. 

 Leaves rather densely incurved-puberulous both sides. 

 Leaves rather sparsely strigillose both sides. 

 Stem and leaves spreading-pilosulous or hirsutulous. 



Branches and leaves softly spreading-pilosulous; leaves 



oval, cuneate to rounded at base. 

 Branches and leaves hirsutulous; leaves lanceolate, 

 long-attenuate at base. 



1. Monnina Wrightii A. Gray, PI. Wright. 2:31. 1853. 



Erect simple or sparsely branched annual, 5 dm. high or less, rather sparsely incurved- 

 puberulous; lowest leaves obovate or elliptic-obovate, obtuse, the others narrowly lanceolate 

 to linear-lanceolate, 1.5-6 cm. long, 1.5-10 mm. wide, acuminate to attenuate, sparsely incurved- 

 puberulous; petioles 1-2.5 mm. long; peduncles terminal, 1-6 cm. long; racemes slender- 

 conic, acuminate, 2.5-8 mm. thick, the axis 3 dm. long or less; bracts ovate-subulate, attenuate, 

 deciduous, 2.5-3 mm. long; pedicels 0.4 mm. long; flowers greenish or cream-colored, becoming 

 purplish-blue in drying; sepals oval-ovate to (lower) elliptic-ovate, acute to acuminate, 1.2-1.8 

 mm. long; wings obovate, 3 mm. long, 2 mm. wide, broadly rounded, glabrous or sparsely 

 ciliate below; keel 3-3.5 mm. long; staminal sheath pilose-ciliate, united with upper petals 

 for most of length, auriculate on upper side at base of first filament, pilose-tufted at apex; 

 fruit obliquely oval or ovale, inequilateral, compressed, cordate at base, spreading-puberulous 

 to glabrous, reticulate, wing-margined on both sides, 3-4.7 mm. long, 2.8-4 mm. wide. 



Type locality: Gravelly slopes and rocky hillsides, near the copper mines [Santa Rita], 

 New Mexico. 



Distribution: New Mexico and Arizona to Chihuahua and Durango. 



2. Monnina saprogena Donn. Smith, Bot. 

 Gaz. 31: 109. 1901. 



Small saprophytic shrub; branches strigillose, glabrate; leaves elliptic or obovate-elliptic, 

 4.5-8 cm. long, 1.5-3.2 cm. wide, acute to acuminate at each end, pergamentaceous-coriaceous, 

 dull-green and strigillose both sides; petioles 5-8 mm. long; racemes several, panicled toward 

 tips of branches, loose, 7-13 cm. long, not at all comose, on peduncles 5-27 mm. long; bracts 

 ovate, acute or obtuse, deciduous, 1 .8—2.5 mm. long; pedicels densely short-strigose with 

 gland- tipped hairs, 2.5-3.5 mm. long; upper sepal triangular-ovate, rounded, ciliolate, 2.2 

 mm. long; lower sepals united for two-thirds their length, obliquely oval, 1.8-2 mm. long; 

 wings oval, 4.8-5 mm. long, 3.8-4 mm. wide, broadly rounded at apex, broadly rounded at 

 base on lower side, oblique and ciliate about to middle on upper side, about 9-nerved; keel 

 5.3 mm. long; apex of staminal sheath and filaments pilose; fruit obliquely ovoid, slightly 

 compressed, acutish, slightly reticulate, 5-5.5 mm. long. 



Type locality-: La Palma, altitude 1540 meters, Province San Jose, Costa Rica. 

 Distribution: Known only from the type locality. 



