OROBANCHACEiE 237 



lip very small. Calyx woolly, with leaf-like segments. Leaves 

 bipimiatifid with inciso-serrate segments. Southern Switzerland, 

 Tyrol, Western Alps. 



D. — Flowers red. Corolla not beaked. Stem-leaves alternate : 



P. sylvatica L. Stem nearly simple, leafy, about 6 inches long, 

 prostrate or spreading. Flowers sessile, dark pink or rarely white, 

 in short terminal heads. Calyx-lobes unequal, lower ones toothed. 

 Leaves pinnate, with deeply cut segments. Damp meadows and 

 pastures in the plains and sub-Alps. Western, Central, and 

 Northern Europe. British. 



P. palusfris L. A larger and more-branched, glabrous plant, at 

 least a foot high. Leaves sometimes opposite, pinnate, with short 

 ovate, crenate segments. Flowers rather large, purple-red, upper 

 lip darker. Calyx bifid. Damp meadows and marshes. Northern 

 and Central Europe to the Arctic regions, Siberia. British. 



This does not ascend so high in the Alps as the last. 



P. rosea Jacq. Flowers rose-coloured, rather large, upper lip 

 darker, in a terminal, short, crowded spike. Stem, bracts, and 

 calyx woolly. Leaves pectinate-pinnate, with linear-incised 

 segments. Eastern and Western Alps, but not in Switzerland, 



P. recutita L. Stem 1-2 feet, leafy. Flowers dull greenish or 

 rusty red, in a long dense spike. Calyx-teeth lanceolate, entire. 

 Leaves pectinate-pinnatifid, with broad segments. Alps and 

 Carpathians. 



E. — Flowers deep pink. Stem-leaves in whorls : 



P. verticillata L. Stem erect, simple, with a few whorls of 3-5 

 narrow pinnatifid leaves. Flowers in crowded, terminal, whorled 

 spikes. Calyx inflated. Corolla not beaked. Alps, Pyrenees, 

 N. Asia, N. America. 



F. — Flowers pink, large. No stem : 



P. acaulis Scop. Quite distinct. Flowers pale pink, large, on 

 short radical stalks. Leaves in a radical whorl. Eastern Alps. 



OROBANCHACE^ 



Leafless brownish root-parasites. Rootstock often tuberous, 

 naked or scaly. Stem stout, solitary, scaly, not often branched. 

 Flowers in more or less dense spikes or racemes. Sepals 4 or 5. 

 Corolla 2-lipped. Stamens 4. Ovary i-celled. Seeds numerous, 

 minute. A widely distributed family, chiefly in Southern Europe. 



Orobanche L. Broom-rape. 



Characters of the family. None are truly Alpine, though several, 

 and particularly 0. epithymum DC. (0. rubra Sm.), are found in the 

 sub- Alps. That species has been seen by the author as high as 6600 



