151 



N. Ord. COMPOSITE. 

 Tribe Anthemidece. 



Genus Anacyclus,* Linn. B. & H., Gen., ii, p. 419. Species 

 10, natives of the Mediterranean region. 



151. Anacyclus Pyrethrum,f DG., Flore Franc., v, p. 480 (1815). 

 Pellitory of Spain. Pellitory. 



Syn. Anthemis Pyrethrum, Linn. Anacyclus pseudo-Pyrethrum, 

 Ascherson. 



Figures. Woodville, t. 20 ; Steph. & Ch., t. 97 ; ISTees, t. 244 ; Lamarck, 

 Illustr., t. 683, f. 4; Miller, Ic., t. 38; Reich., Ic. PI. Germ., t. 999. 



Description. A perennial herb with numerous spreading, 

 prostrate or ascending, branched stems, more or less hairy in 

 their upper portions, nearly smooth below, and coming from the 

 crown of a long, tapering, vertical, brown, slightly branched 

 root. Leaves alternate, the ones at the root-crown long- stalked, 

 ovate or oblong in outline, deeply bipinnatisect, segments linear, 

 acute, often again 2- or 3-fid, more or less hairy or nearly gla- 

 brous. Heads terminal, large, 1 1^ inch or more wide, with a 

 wide disk ; involucral scales in several rows, imbricated, ovate- 

 lanceolate, varying in width, blunt or subacute, smooth, pale- 

 green, bordered with an edge of brown ; receptacle slightly convex, 

 with large obovate rounded transparent scales beneath the 

 flowers. Disk-flowers bisexual, corolla tubular, contracted below, 

 with 5 equal triangular spreading teeth, yellow ; anthers apiculate, 

 not tailed at the base, included in the corolla; style exserted, 

 stigma bifid, with 2 linear branches. Kay-flowers female, in a 

 single row, corolla ligulate, the limb broadly oval, trifid at the 

 apex, white above, tinged with bright pink below. Fruit 



* Anacyclus abridged from Ananthocydus, Yaillant's name for the genus 

 from d not, avQog flower, and KVK\OQ a circle, in allusion to the outer ovaries 

 being without flowers (Theis). 



f Pyrethrum; the irvpiQpov of Dioscorides (perhaps really applied to more 

 than one plant) was referred to this by the botanical writers of the pre- 

 Linnean period. 



