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. calcarea^ Schultz 

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

 leafy branches ; P. austriaca, Crntz. (tiliginosa, 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. coinosa, 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. {niccseiisis, 

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

 sepals very large, \-\ in., nearly round, capsule w^ith a 

 broad border; Ticino, Simplon, Pyrenees. 



Order XL— DROSERACE^. 



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 



