- 34 



28a. Calyx globular, much inflated or .bladder-like 



Bladder Campion, Silene latifolia. 

 28b. Calyx club-shape, not inflated 



Sweet William Catchfly, Silene armeria. 



29a. Leaves linear or narrowly lanceolate, 5 mm. wide or less (flow- 

 ers pink or white, in summer) 30. 



29b. Leaves lanceolate or ovate (flowers pink, white, or red, in sum- 

 mer) 32. 



30a. Flowers in terminal clusters; leaves hairy (2 4 dm. high) 



Deptford Pink, Dianthiis armeria. 



30b. Flowers solitary at the ends of long pedicels 31. 



31a. Flowers 34 mm. wide (12 dm. high) 



Gypsophyll, Gypsophila nmralis. 

 31b. Flowers 1 cm. wide or more (1 5 dm. high) 



3Ieadow Pink, Diantlms deltoides. 



32a. Flowers less than 1 cm. broad 33. 

 32b. Flowers more than 1 cm. broad 34. 



33a. Flowers white, in large panicles (4 7 dm. high) 



Baby's Breath, Gypsophila paniculata. 

 33b. Flowers pale red, in loose clusters (4 10 dm. high) 



Cow-herb, Sapouaria yaccaria. 

 34a. Leaves with 3 5 prominent veins (4 7 dm. high) 



Soapwort, Saponaria officinalis. 

 34b. Leaves with one mid-vein (3 6 dm. high) 



Sweet William, Diantlms barbatus. 



PORTULACACEAE, the Purslane Family 



Herbs with opposite or alternate leaves and regular flowers with 

 2 sepals, 5 petals, and a 1-celled ovary with 2 or 3 styles. 



la. Leaves a single pair on each stem (1 2 dm. high,' flowers pink, 

 in racemes in early spring) (Spring Beauty) 2. 



Ib. Leaves numerous (prostrate or spreading; flowers in sum- 

 mer) 3. 



2a. Leaves lance-ovate to oblong, not more than six times as 

 long as wide Spring 1 Beauty, Claytonia caroliniana, 



2b. Leaves linear or linear-lanceolate, more than six times as 

 long as wide Spring- Beauty, Claytonia virginica. 



3a. Flowers yellow, about 5 mm. wide Purslane, Portulaca oleracea. 

 3b. Flowers 2 5 cm. wide Portulaca, Portulaca grandiflora. 



CERATOPHYLLACEAE, the Hornwort Family 



Submerged aquatics, with whorled, finely dissected leaves and in- 

 conspicuous flowers with neither calyx nor corolla. 



One species in Michigan Hornwort, Ceratophyllum demersum. 



