112 



C. J. HUMPHRIES 



5cm - A 



Fig. 12 Anacyclus pyrethrum var. pyrethrum: A - habit, B - involucral bract, C - receptacular 

 scale, D - ray floret, E - disc floret, F - cypsela, G - anthers. 



Chromosome number: 2n= 18. 



Nomenclatural note: In Linnaeus's Species Plantarum the description of Anthemis pyrethrum 

 remains unchanged from that given in Hortus Cliffortianus (1737 : 414). The type specimen, 

 which should be in Herb. Cliff. (BM) is unfortunately missing. The only other specimens corre- 

 sponding with elements in the protologue are those now kept at the Linnean Society of London 

 (LINN). There are two specimens in this collection, genus 1016 - Anthemis, sheets 18 and 19 

 (Savage, 1945), of which the first, indicated by the name 'pyrethrum', is an inflorescence fragment 



