PORTULACACEAE 85 



3. A. hirsuta Pursh. Closely resembles the last, but glandular-pubes- 

 cent all over. — Barrens west and north of Lee's Summit. May-September. 



4. A. linearis Parsh. l°-5° high, glaucous : leaves narrowly linear : 

 inflorescence puberulent. — Adveutized along railroads. Atherton to Shef- 

 field ; Hickman's Mills. Infrequent. May-September. A. Bushii Brit- 

 ton is but a depauperate form of this species. 



Family 42. AIZOACEAE A. Br. 



Prostrate herbs with small regular llowers. Calyx 4-5-parted. Sta- 

 mens perigynous. Ovary 3-5-celled, many-ovuled. Fruit a capsule. 



1. MOLLUGO L. 



Flowers axillary. Sepals 5. Petals none. Stamens 3-5. Ovary 3- 

 celled and stigmas 3. Stipules scarious, deciduous. 



1. M. verticillata L. Caepet Weed. Leaves linear-spatulate, in 

 whorls of 5-6 : flowers on slender pedicels, V^ broad. — Usually common 

 along railroads and in sandy grounds. June-October. 



Family 43. PORTULACACEAE Reichenb. 

 Herbs with regular uusymmetrical flowers. Sepals 2. Petals 4-5. 

 Stamens equalling petals or more numerous. Ovary 1-celled, with few to 

 many ovules. Style 2-3-cleft. Capsule circumscissile or dehiscent by 

 three valves. 



Flowers cymose-paniculate. 1. Talinum. 



Flowers in terminal racemes. 2. Claytonia. 



P'lowers axillary. 3. Portulaca. 



1. TALINUM Adans. 



Erect perennial herbs with alternate terete leaves and cymose-paniculate 

 flowers. Capsule three-valved. 



1. T. calycinum Engelm. Flame Flower. 4^-12^ high: leaves basal, 

 clustered : cymes compound : flowers V broad, pink : sepals persistent : 

 stamens 12-30. — On almost naked limestone rocks at Greenwood and 

 south of Oak Grove. Abundant in two small localities. May-Septem- 

 ber. 



2. CLAYTONIA L. 



Herbs with flowers in terminal racemes. Sepals persistent. Stamens 

 and petals 5 each. 



1. C. Virgiaica L. Spring Beauty. 6^-12^ high from a deep solid 

 tuber : leaves few, linear-lanceolate : flowers pinkish, with darker veins, 

 2^-1' broad. — Very abundant in moist rocky woods. April-May. 



3. PORTULACA L. 



Prostrate herbs with sessile terminal flowers : petals usually 5, and 

 stamens 7-many, inserted on calyx. Capsule dehiscent by a lid. 



