PKIMULACEAE 905 



than the bracts : calyx glabrous; lobes lanceolate or linear-lanceolate, becoming 6-7 mm. 

 long, acuminate : corolla bright yellow, 1.5-2 cm. broad ; lobes toothed : staminodia sub- 

 ulate : capsules 4-4.5 mm. long. 



In thickets or moist soil, Minnesota to New Jersey, Florida and Arizona. Spring and summer. 



5. ANAGALLIS L. 



Annual or rarely perennial often glabrous caulescent herbs. Leaves mostly opposite 

 or whorled : blades entire. Flowers on slender axillary peduncles. Sepals 5, united be- 

 low, narrow, persistent. Corolla rotate : lobes 5, usually entire, convolute. Stamens 5, 

 adnate to the base of the corolla : filaments slender, sometimes pubescent. Ovary 1-celled : 

 style filiform : stigma capitate. Ovules half-anatropous, in a subglobose placenta. Cap- 

 sule subglobose, circumscissile. Seeds numerous. POOR MAN'S OR SHEPHERD'S WEATHER- 

 GLASS. PIMPERNEL. 



1. Anagallis arv6nsia L. Annual, glabrous. Stems simple or usually branched, the 

 branches slender, spreading, 5-30 cm. long, 4-angled : leaf-blades ovate or oval, 5-20 mm. 

 long, obtuse or acutish, punctate, entire, sessile or clasping, the upper ones sometimes 

 alternate : peduncles filiform, 1-2 cm. long, recurving at maturity : sepals narrowly 

 lanceolate, about 2 mm. long, keeled, acuminate : corolla scarlet or rarely white, mostly 

 darker in the center, 5-7 mm. broad, the lobes glandular-ciliate : capsules subglobose, about 

 4 mm. in diameter. 



In waste places, Newfoundland to Vancouver Island, south to Florida and Mexico. Naturalized 

 from Europe. Also in Asia and Africa. Spring and summer. A state with blue corollas, is known as 

 A.arvensis caerulea (Lam.) Ledeb. 



6. CENTUNCULUS L. 



Small annual caulescent herbs, with glabrous foliage. Leaves alternate, or the lower 

 opposite : blades entire. Flowers minute, solitary, on axillary pedicels or nearly sessile. 

 Sepals 4-5, united below, persistent. Corolla not exceeding the calyx : tube subgl obese : 

 lobes entire, spreading. Stamens 4-5, inserted on the throat of the corolla-tube : filaments 

 somewhat dilated : anthers sometimes cordate. Ovary 1-celled : style filiform : stigma 

 capitate. Ovules numerous, half-anatropous, in a subglobose placenta. Capsule subglo- 

 bose, circumscissile. Seeds numerous. FALSE PIMPERNEL. 



Flowers on pedicels about as long as the leaves : parts of the flowers in 5's. 1. C. pcntandrus. 



Flowers sessile or nearly so : parts of the flowers in 4's. 2. C. minimus. 



1. Centunculus pentandrus K.Br. Stems erect, 5-20 cm. tall, often branching: 

 leaf-blades oval to suborbicular, 3-10 mm. long, apiculate, entire, the lower ones short - 

 petioled, the upper sessile : pedicels slender or filiform, 5-15 mm. long, usually as long as 

 the leaves or longer : sepals 5, lanceolate, acuminate, 2-2.5 mm. long : corolla about 2 mm. 

 broad : stamens 5 : capsule about 2 mm. in diameter. 



In low grounds, peninsular Florida. Also in tropical America. Spring to fall. 



2. Centunculus minimus L. Stems erect, 2-15 cm. tall, simple or branched : leaf- 

 blades spatulate, oblong or obovate, 3-8 mm. long, acutish or obtuse at the apex, short- 

 petioled or the upper sessile : flowers sessile or nearly so : calyx much shorter than the 

 leaves : sepals 4-5, subulate-lanceolate, 2-2. 5 mm. long, acuminate : corolla pink ; tube 

 globose, lobes 4 : capsule nearly 2 mm. long. 



In low grounds and moist soil, Minnesota to British Columbia, south to Illinois, Texas and Mexico. 

 Also in South America and Europe. Spring to fall. 



7. DODECATHEON L. 



Perennial showy scapose chiefly cliff-inhabiting herbs. Rootstocks short. Leaves 

 basal : blades entire or coarsely toothed, various : petioles winged. Scape solitary, topped 

 by a few- to many-rayed umbel. Flowers pink, purple or white, nodding at the ends of 

 slender pedicels. Calyx-lobes 5, reflexed in flower, longer than the tube. Corolla hypog- 

 ynous : tube very short : lobes 5, imbricated in the bud, reflexed, many times longer than 

 the tube. Stamens 5, exserted : filaments usually united : anthers attached by their 

 bases. Ovary free : style filiform : stigma capitate. Ovules numerous, half-anatropous, 

 inserted in a rounded stalked placenta. Capsule partially 5-valved. Seeds numerous, the 

 testa punctate. MEADIA. SHOOTING STAR. AMERICAN COWSLIP. 



