POLYGALACE^ 39 



a beautiful plant, frequent in bushy places in the Alps, 

 Dauphiny, and Pyrenees. 



B. Corolla with a fimbriate crest ; filaments united 

 half-way ; flowers much smaller \—P. vulgaris, L., Milk- 

 wort; flowers blue, pink, or white, very common on 

 dry banks. P. depressa, Wend. ( P, serpyllacea, Weihe) ; 

 stem more procumbent, flexuous; P. calcareay Schultz 

 (PL 12); a much more compact plant, with spreading 

 leafy branches; P. austriaca, Crntz. {uliginosa, Rchb.); 

 with small flowers and very narrow wing-sepals; P. 

 amara, L. {P. alpestris^ Rchb.) ; a smaller plant with 

 small flowers, nearly simple stem, thick spathulate 

 leaves, and narrow inner sepals ; all with blue flowers ; 

 in similar localities. P. comosa, L. ; resembling P, vul- 

 garis, but a larger erect plant, with the bracts greatly 

 exceeding the unopened flowers; hillsides; Southern 

 Switzerland, Tirol, Pyrenees. P, rosea, Desf. {niccBensis, 

 Riss.); flowers large, pink, in terminal spikes, wing- 

 sepals very large, \-\ in., nearly round, capsule with a 

 broad border; Ticino, Simplon, Pyrenees. 



Order XL— DROSERACEiE. 



Sepals 4-8; petals 4-8; stamens 4-20; ovary free, i- 

 5-celled; styles 1-5. A small order of aquatic or marsh 

 plants with insectivorous habit. 



I. Drosera, L. 



Flowers small, white, in scorpioid cymes, on leafless 

 scapes; radical leaves fringed with capitate tentacles, 

 which exude a mucilaginous excretion. The pretty little 



