24 FLOWERING PLANTS OF THE RIVIERA 



** Leaves divided ; sepals reflexed. 



R. monspeliacus L. Plant 2-3 ft. high, covered with soft hairs. Root 

 leaves with long stems, tripartite, with obtuse, dentate crenate lobes. Stem 

 leaves with linear or lanceolate lobes. Sepals finally reflexed and hairy. Petals 

 pale yellow, large, loose. Carpels, smooth, round, with long beak rather deflexed. 



Rocky ground and borders of fields in the hill region. May. 



R. bulbosus L. Bulbous Buttercup. Stem swollen at base, without run- 

 ners, erect, hairy. Leaves tripartite, with lobed segments, variable. Peduncles 

 furrowed. Sepals reflexed. Achenes compressed, margined, glabrous, with 

 short hooked beak. 



Meadows, woods, and cultivated places. April-June. 



R. velutinus Ten. Plant 1-3 ft. high, hairy below. Leaves tripartite.with 



broad lobes. Peduncles glabrous. Sepals reflexed. Achenes compressed, 



strongly margined, glabrous, with very short straight beak. Flowers rather small. 



Damp meadows, marshes, and shady places under olives; local. May, June. 



R. macrophyllus Desf. = R. palustris G.G. Stem 1-2 ft. high, hollow, 

 branching, hairy below like the petioles. Leaves hairy, lower ones large, 5- 

 partite, orbicular. Flowers rather large. Sepals reflexed and then spreading. 

 Carpels compressed, keeled with short, almost straight beak. 



Damp places. May, June. Ditches of the ramparts at Toulon and near La 

 Crau (Var). 



R. Sardous Crantz = R. philanotis Retz. Stem erect, 9-18 in. 

 Leaves tripartite. Peduncles furrowed. Flowers small. Sepals reflexed. 

 Achenes tubercled. An annual. 



Damp fields, May-July. Common and variable in the Var. R. trilobus 

 Desf. is a sub-species found at Hyeres, La Seyne, Ampus, etc. 



R. paryiflorus L. Small-flowered Buttercup. Stem spreading, decumbent. 

 Leaves orbicular or reniform, 3 lobed, segments toothed; lowest leaves often 

 entire; upper with linear lobes. Peduncles furrowed. Flowers pale yellow, 

 very small. Achenes small. An annual. 



Damp shady places and banks. April, June. 



R. sceleratus L. Celery-leaved Crowfoot. Annual, erect. Stem 1-2 ft., 

 hollow. Leaves glabrous, 3 lobed, segments of lower lobes obtuse, of upper 

 linear subentire. Sepals reflexed, hairy. Head of small glabrous achenes, 

 oblong. Flowers J in. diameter. 



Recorded by Ardoino from ditches and marshes by the R. Var near Nice. 

 Rare in the South of France. May-August. 



*** Leaves divided; sepals spreading. 



R. repens L. Creeping Buttercup. Stem hairy, decumbent below with 

 long runners. Leaves petioled, tripartite with cuneate, lobed, and toothed seg- 

 ments. Peduncles furrowed. Sepals spreading, hairy. Achenes compressed, 

 glabrous ; beak hooked. Flowers i in. in diameter. 



Damp places and borders of ditches, common. April-June. 



R. acris L. Upright Buttercup. Stem hairy, erect, without runners, 1-3 ft. 

 Leaves usually all petioled, 3-7-partite, 5 angled in outline, uppermost sessile. 

 Peduncles not furrowed. Sepals spreading, pubescent. Achenes compressed, 

 style hooked. Flowers i in. diameter. 



Meadows, etc., common. May-July. 



R. montanus Willd. Grows in the mountain and sub-Alpine region of 

 Alpes-Marit. Stem short, nearly simple ; leaves palmatipartite. 



R. lanuginosus L. The size of R. acris. Stems hollow, branched, 

 densely woolly. Leaves hairy beneath; lower ones 5-partite with broadly 

 obovate lobes, toothed ; the upper ones tripartite with lanceolate lobes. Peduncles 

 not furrowed. Sepals spreading, hairy. Receptacle glabrous. Carpels glabrous, 

 with hooked beak nearly half length of carpel. 



