LEGUMINOS/E 8l 



*** Heads terminal and axillary ; calyx hairy or with ciliate teeth. 



T. arvense L. Hare's-foot Trefoil. A slender annual or biennial covered 

 with soft hairs. Leaflets linear-oblong. Stipules narrow, free portion linear 

 setaceous. Flowers very small, numerous, pale pink, in silky oblong or cylindric 

 peduncled heads. Calyx very silky, teeth plumose, longer than corolla. 



Sandy fields and dry places, common. May-July. 



T. ligusticum Balb. Annual, green, slender. Leaflets obovate. Flowers 

 rose, very small, in oblong cylindric heads, often in pairs, one axillary and ped- 

 uncled, the other terminal and subsessile. Calyx-tube hairy, teeth setaceous, 

 equal, twice length of tube. 



Fields and waste sandy ground, rare. May, June. 



T. subterraneum L. Subterranean Clover. Annual, softly hairy, prostrate. 

 Leaflets obcordate, sometimes reddish. Stipules ovate acute. Calyx-teeth 

 setaceous, as long as tube. Fertile flowers 2-5, creamy-white, in loose peduncled 

 heads elongated after flowering and turned down towards the earth. 



Sandy fields and grassy places. March-July. 



T. resupinatum L. Reversed-flowered Clover. Annual. Leaflets obcor- 

 date. Free part of stipules lanceolate-acuminate. Upper lip of calyx with 

 2 divergent teeth. Calyx swollen in fruiting stage. Bracts under pedicels 

 truncate, forming a small green involucre. Flowers rose, reversed, in small 

 globose, peduncled heads. 



Fields, road-sides, etc., not common. April-July. 



T. tomentosum L. Annual, prostrate. Leaflets obovate-cuneate, nearly 

 glabrous, the name being derived from the very tomentose calyx, whose 2 upper 

 teeth are short and hidden in the wool. Flower-heads small, almost sessile, with 

 bracts beneath forming an involucre. Flowers rose, very small. 



Grassy places near the sea. April-May. 



T. Bocconi Savi. Boccone's Clover. A small, stiff, erect rather downy 

 annual. Leaflets obovate or oblong-cuneate. Calyx-teeth connivent, unequal, 

 subulate, lower one as long as the tube. Flowers rose, small, in oblong sessile 

 heads, the terminal ones usually in pairs. 



Sandy places and dry fields, uncommon. May-July. 



T. fragiferum L., T. striatum, and T. scabrum come in this group. 

 **** Heads terminal and axillary, calyx glabrous or nearly so. 



T. glomeratum L. Clustered Clover. Annual. Uppermost leaves 

 opposite, others alternate ; leaflets toothed, broadly obovate. Stipules short. 

 Calyx beautifully ridged with 10 nerves ; teeth equal, broad, very pointed, and 

 reflexed when ripe. Corolla pink, very small, but exceeding the calyx-teeth. 

 Flower-heads sessile, axillary, globose. 



Dry, waste places. May-June. 



T. montanum L. Stems erect, a foot high, pubescent. Leaflets oblong, 

 elliptic, glabrous above, strongly nerved, finely toothed all round. Flower-heads 

 globular or oval, long peduncled; flowers white or cream-coloured, rarely rose. 

 Calyx slightly hairy, with equal teeth. 



Mountain pastures. June, July. It ascends to the lower Alpine region. 



T. nigrescens Viv. Plant glabrous, bright green, annual. Leaflets obovate- 

 cuneate. Flower-heads globose, lax, on peduncles longer than leaves. Stipules 

 oval, abruptly acuminate. Flowers white or pinkish, on short pedicels, finally 

 reflexed and becoming brown. Calyx whitish, with green veins, upper teeth 

 contiguous. , 



Road-sides and pastures. April-June. 



T. suffocatum L., T. repens L. (White Clover), and T. elegans Savi., 

 come in this group; also T. hybridum L. (Alsike Clover), which was found by 

 the writer with M. Jahandiez on a road-side in the Island of Porquerolles in 

 May, 1913 (new to the Var). 



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