27. Chenopodiaceae 87 



2. Leaves 2, linear-lanceolate; petals pink or white: capsule 3- to 6-secded, 

 opening by 3 valves 2. Claytonia 



2. Leaves numerous, thick, spatulate ; capsules circumscissile, many-seeded 

 3. Portulaca 



1 . Talinum Adans. — Rock-pink 

 1. Stamens 12-30 or more; petals 7-13 mm long. 



2. Stamens 12-25; petals 7-8 mm long; seeds rugose; sandy soil, 

 rare; Henderson, Jo Daviess, Lake, La Salle, Lee, Ogle, and 



Winnebago counties. June-Sept 7'. rugospermum Holz. 



2. Stamens 30 or more; petals 10-13 mm long; seeds smooth; 

 exposed sandstone bluffs, rare; Randolph Co. R. H. Mohlen- 



hrock in 1955. June-Sept T. calycinum Engelm. 



1. Stamens 4-8; petals 5-6 mm long; rocky ledges, rare; Johnson, 

 Pope, and Union counties. June-Sept T. parvifiorum Nutt. 



2. Claytonia L. — Spring Beauty 



C. virginica L. Woods and waysides, abundant throughout the 

 state. Mar.-May. 



3. Portulaca L. 



1. Leaves obovate, spatulate; stamens 6-10; fields and waste ground, 



common; nat. from Eur. July-Sept P. oleracea L. 



1 . Leaves terete ; stamens about 40 ; occasional garden escape. 



Portulaca P. grandiflora Hook. 



26. Aizoaceae A.Br. — Carpetweed Family 



1. MoUugo L. — Carpetweed 

 M. verticillata L. Fields, roadsides, and waste places, common; nat. 

 from the southern states. June-Oct. 



27. Chenopodiaceae l)um. — Goosefoot Family 



1. Leaves alternate. 



2. Leaves not spine-tipped or subulate. 



3. Flowers perfect, not enclosed in a pair of triangular bracts: perianth 

 present. 

 4. Flowers in clusters: fruit enclosed in the calyx. 



5. Calyx not horizontally winged 1. Chenopodium 



5. Calyx becoming horizontally winged. 



6. Leaves sinuate-dentate; flowers paniculate 2. Cycloloma 



6. Leaves linear or narrowly lanceolate, entire, yellowish-green : 



flowers spicate 3. Kochia 



4. Flowers solitary, axillary; calyx of a single sepal 4. Corispermum 



3. Flowers unisexual, the pistillate enclosed by a pair of triangular bracts: 



leaves narrowly lanceolate to hastate 5. Atriplex 



2. Leaves subulate, spinescent; stems branched, striate; flowers 1-3 in the 



axils 6. Salsola 



1. Leaves scale-like, opposite; branches terete, succulent, jointed 7. Salicornia 



