EBENACEAE 147 



4. NAUMBURGIA Moench. 



A perennial herb with flowers in dense axillary peduncled heads. 

 Corolla lobes linear, punctate-dotted, with a small tooth in each sinus. 

 Ovules few. 



1. N. thyrsiflora (L.) Duby. Tufted Loosestrife. 1°-3° high : 

 leaves oblong-lanceolate, sessile, entire, strongly black dotted : flowers 

 ^"-Z" long. — In a bog two miles west of Sibley. Rare and local. May- 

 June. 



5. ANAGALLIS L. 



DifEuse herbs with peduncled axillary flowers. Corolla rotate. Cap 

 sule eiroumsoissile, many-seeded. 



1. A. arvenais L. Poor Man's Weather Glass. 4'-12' high, 

 glabrous : leaves ovate, entire, sessile, black-dotted : flowers red. — 

 Abundantly naturalized in fields near Courtney and Independence. 

 May-August. 



6. CENTUNCULUS L. 



Annuals with axillary flowers. Corolla white, shorter than the calyx, 

 its lobes spreading. Capsule circumscissile, many-seeded. 



1. C. minimus L. Chaff weed. V-h' high; leaves oblong, entire, 

 tapering to the base, sessile: flowers nearly sessile. — Abundant in sandy 

 fields southeast of Grain Valley and near Martin City. June-July. 



7. DODECATHEON L. 



Flowershandsome in involucrate umbels terminating the scape, nodding. 

 Calyx and corolla lobes reflexed at flowering time. Filaments monadel- 

 phous at base, approximate into a cone, exserted. Capsule oblong, erect, 

 dehiscent by valves. 



1. D. Meadia L. SHOOTING Star. Leaves oblanceolate, entire, 

 petioled: scape l°-2° high: flowers rose-colored, W-Xb" long.— On the 

 prairie along the railroad a half mile north of Greenwood. A few 

 clumps. First discovered about 1865 by Prof. Broadhead ; rediscovered 

 in 1899. May. 



Family 97. EBENACEAE Vent. 



Woody plants with alternate entire leaves and regular polygamous flow- 

 ers. Calyx and corolla each 3-7-lobed. Stamens 3-4 times as many as 

 the corolla lobes. Ovary superior, 3-12-celled, each cell containing 1-3 

 suspended ovules. Styles 2-8. Fruit a berry. Seeds bony. 



1. DIOSPYROS L. 



Flowers of two kinds, the sterile in cymes, the fertile solitary in the 

 axils. Calyx and corolla 4-6 lobed. Fruit a large 4-8-seeded berry. 

 Pistillate flowers with imperfect stamens. 



1. D. Virginiana L. Persimmon. 15°-40° high: leaves ovate-oblong, 

 petioled, strongly pubescent when young, as are the branchlets: corolla 

 yellowish-brown. — Frequent throughout in dry soil. June-Julv 



