CARYOPHYLLACEAE (CHICK-WEED FAMILY) 91 



F. Petals entire, or emarginate, or 2-lobed or -cleft, or the 2 lobes again merely 



emarginate. 

 G. A part of each of the upper internodes of the stem glutinous; stem otherwise 



glabrous or merely puberulent; plant annual or biennial. 



H. Flowers 3-4 mm. wide, paniculate; calyx ovoid; leaves linear to lanceolate. 

 W. C. E. S. antirrhina (SLEEPY CATCH-FLY) 



HH. Flowers 12-17 m m. wide, cymose; calyx club-shaped; leaves ovate- 

 lanceolate. W. E. S. armeria (SWEET-WILLIAM CATCH-FLY) 

 GG. Stem either not sticky at all, or else viscid-pubescent and thus sticky through- 

 out the whole of the internodes. 

 I. Leaf-blades widest below their middle. 



J. Calyx 21-31 mm. long; plant annual or biennial, viscid-pubescent or hirsute. 

 W. E. S. noctiflora (NIGHT-BLOOMING CATCH-FLY) 



JJ. Calyx 8-20 mm. long; plant perennial. 



K. Leaves ovate-lanceolate; flowers in the forks of the branches thus form- 

 ing a leafy inflorescence; calyx 5-8 mm. long; plants finely glandular- 

 pubescent. W. E. S. menziesii (MENZIES PINK) 

 KK. Leaves narrower; flowers in cymes or spikes or panicles which are not 



leafy; calyx longer. 



L. Plant viscid-tomentose; inflorescence subspicate or cymose-paniculate; 

 petal blades scarcely exceeding the 4 appendages; ovary stipitate. W. C. E. 



S. spaldingii 



LL. Plant pubescent but not viscid; inflorescences 3-5-flowered cymes; 

 petal blades quite longer than the appendages; ovary not stipitate. 

 W. C. E. S. douglasii 



n. Leaf blades widest at or above their middle. 



M. Inflorescence a whorled spike; flowers many; stem hairs not jointed; 



petals 2-lobed, the lobes again emarginate. W. E. S. scouleri 



MM. Inflorescence a simple i-sided raceme, often spikelike; flowers several 



to many; stem hairs white, jointed; petals entire to 2-lobed, the lobes not 



emarginate. W. S. anglica (ENGLISH CATCH-FLY) 



MMM. Inflorescence a panicle, or flowers only 1-7 and scattered; stem hairs 



not jointed; petals emarginate or 2-lobed, the lobes not again emarginate. 

 N. Plants 1-2.5 dm. high; leaves 0.6-2.5 cm. long. 



O. Petal lobes entire; petal appendages retuse. C. E. S. suksdorfii 



OO. Petal lobes each with a short lateral tooth; petal appendages obtuse. 



W. C. S. watsoni 



NN. Plants 3-9 dm. high; leaves 2.5-7.5 cm. long. 



P. Stem with leaves; basal leaves i -veined, 2-4 mm. wide. W. C. E. 



(See LL.) 



PP. Stem with 1-2 pairs of bracts but no leaves; basal leaves 3-veined, 

 6-1 1 mm. wide. E. S. scaposa 



FF. Petals with 4 or more distinct lobes or divisions. 



Q. Flowers borne in the forks of the branches and forming a leafy inflorescence. 

 W. C. S. campanulata 



QQ. Flowers in naked or bracted cymes or panicles. 



R. Calyx campanulate; ovary not stipitate. W. C. E. S. macounii 



RR. Calyx cylindric or obovoid ovary stipitate, but in some very shortly so. 

 S. Calyx 7-9 mm. long. W. S. lemmoni 



SS. Calyx 12-19 mm. long. 



T. Plant fetid, very viscid. C. E. S. oregana 



TT. Plant not fetid, not glandular or only somewhat so above. 

 U. Petals 2-parted, each part again 2-lobed. W. S. montana 



UU. Petals 3-parted, each part again 2-lobed. W. S. gormani 



