COMPOSIT/E 145 



L. tenerrima Pourr. A somewhat similar plant with much smaller blue 

 flowers, and stem-leaves with 2 sagittate acute auricles. Achenes oval, with 

 beak of about the same length. Pappus yellowish. 



Rocks and old walls, rare. June-July. Sollies-Toucas, and near Roubion. 



The following species with yellow flowers occur in the district : L. virosa 

 L. (achenes nearly black with a broad border, and glabrous), L. Scariola L. 

 (achenes pale, with a narrow border, and hairy at summit), L,. muralis Fres., 

 L. viminea PresL, and L. saligna L. with its var. runcinata G. G. which has 

 stem-leaves all runcinate except the upper ones. L. ramosissima G. G. with 

 bright yellow flowers is perhaps only a variety of L. viminea whose flowers 

 are pale yellow. 



PRENANTHES L. 



Prenanthes purpurea L. A tall glabrous plant with almost entire auricled 

 leaves glaucous beneath, the lower ones prolonged into a winged petiole, upper 

 ones lanceolate. Flowers bluish-purple in a loose panicle. 



Mountain woods, but chiefly above 1000 metres. July-August. 



SONCHUS L. SOW-THISTLE. 



S. oleraceus L., S. asper Hill., S. tenerrimus L., S. glaucescens 

 Jard., S. giganteus Shuttle., S. arvensis, and S. maritimus L. are 



found in various parts of our area. Some are very polymorphic and difficult to 

 distinguish. S. oleraceus in various forms is one of the commonest plants 

 epiphytic upon the Palms about Hyeres. S. arvensis and S. maritimus also 

 occur on the Palms, with various other plants. 



PICRIDIUM >/. 



P. Vlllgare Desf. A glabrous and glaucous annual. Stems 1-2 ft. high, 

 erect, branched. Stem-leaves lanceolate, amplexicaul, with broad rounded 

 auricles. Peduncles long, with several scales. Flowers yellow. Achenes brown, 

 covered with large tubercles. 



Waste places and fields. Very common on the littoral and flowering most of 

 the year. 



ZACINTHA Tourn. 



Z. verrucosa Gaertn. is common in stony fields in the littoral. May-June. 

 It is an erect annual, with nearly glabrous stem, but usually hairy leaves near 

 the base of the stem. Leaves oblong, sinuate or lyrate ; upper ones lanceolate 

 with acute auricles. Heads small, nearly sessile, few, in the forks of the lateral 

 branches swollen at the top. 



PTEROTHECA Casj. 



P. nemausensis Cass. = P. sancta F. Schulz. A slender and variable 

 annual, 3-12 in. high. Leaves all radical, in a rosette, pubescent, oblong, 

 lyrate pinnatifid. Heads on long branched peduncles, forming a loose corymb. 

 Flowers yellow. Outer achenes much larger than the others. 



Fields and road-sides, etc. Very common on the littoral. February-August. 

 This plant is extending its range northward in France, and has already reached 

 Lyon. In Liguria it extends to 900 m. in the hills. 



BARKHAUSIA Mcench. 



This genus, closely allied to Crepis, comprises the following littoral species : 

 B. albida Cass. (in the hills and lower mountains), B. fcetida DC., B. taraxaci- 

 foliaDC., B. setosa DC., B. Leontodon DC., and the rare B. Suffreniana 



Lloyd, a small slender annual with oblong sinuate, rosette leaves, and lanceolate 

 amplexicaul stem-leaves. Involucre hispid with short glandular hairs. 



B. Leontodon (Crepis leontodontoides All.) is a Corsican plant, only found 

 ;n this part or France. Stems slender. Leaves glabrous. Involucre never hispid. 



