PLANTS WITH TRAPS AND PITFALLS TO ENSNARE ANIMALS. 



13<i 





<i:. 



(gp-*-'* 





Fig. 25A.-S\varmspores, Zygospores, and Chlorophyll-bodies, 

 a-d, Development of Swarmspores in the tubular cells of Vaucheria clavata. e-h, Swarmspores and Resting-cells of "red- 

 snow " (Sphaerella nivalis), mixed with pollen-grains of Pines, i— k, Forms of Chlorophyll in cells of Dcsmidiew (i Clos- 

 teriiun Leibleinii; k, Penium interrupUim). 1, Formation of Zygospores and spiral arrangement of Chlorophyll-bodies 

 in cells of Spirogijra arcta. m, Star-shaped Chlorophyll-bodies in cells of Ziignema pectinatum. n-o, Gloeocapsa san- 

 guinea, p, Protonema of Schistostega osmundacea. q, Transverse section of the foliage-leaf of Satureja hortemis. AU 

 figs, enlarged. 



Restpicting ourselves to a consideration of other members of the family Scro- 

 phulariacese allied to Lathrwa and Bartsia, we find in the Louse wort (Pedicidaris) 



