IGG S. Kurz — Contributions towards a [No. 2, 



tailless. Style-branches truncate or penicillato, rarely shortly appendaged. Pappus 

 none, or reduced to a raised border or rarely of short scales. Leaves usually alternate. 

 * Receptacle paleaceous. Floiver -heads radiate^ or rarely homogamously dis- 

 coid. 

 Achillea. Involucre ovoid, bell-shaped or rarely hemispherical. Achenes com- 

 pressed, narrowly margined. Herbs or undershrubs, the leaves alternate. 



* * Recepitacle naked.! or alveolate-Jibrillose. 



X Flower-heads radiate. Involucre bracts rather broad. 

 Chrysanthemum. Eeceptacle flat or convex. Achenes regularly or irregularly 

 5 — 10-ribbed. Pappus none, or rarely of very short scales or forming a cup. 

 X X Flower-heads heterogamous, discoid. [Cotulca;). 



+ Florets of the circumference few. Achenes obovate or 

 rounded at the top. 

 Artemisia. Involucre-bracts in few rows. Achenes almost terete or compressed, 

 2- or thinly many-ribbed or without ribs. Herbs or undershrubs, the leaves dissect to 

 simple. Flower-heads small, in racemes or panicled racemes. 



+ + Florets of circumference very numerous. Achenes 



flat or concave at the top. Flower-heads spherical or 



hemispherical. 



CoTULA. Florets of the circumference without any or with a very short broad or 



conical corolla, the hermaphrodite florets 4-toothed, with a widened or thin tube. 



Achenes flat, obtuse or truncate. Flower-heads peduncled. Small herbs. 



Myriogyne. Florets of the circumference with a 2 — 3-cleft corolla nearly as long 

 as the style, the hermaphrodite florets 4-toothed. Bracts of involucre small and much 

 shorter than the 3 — 4-cornered achenes. Flower-heads sessile, minute. Prostrate 

 herbs. 



Centipeda. As preceding but involucral bracts large and broad, in fruit conni- 

 vent and covering the cylindrical slightly striate achenes. Prostrate herbs. Flower- 

 heads sessile, small. 



X X Pappus usually of numerous capillary soft bris- 

 tles, (rarely paleaceous or none). 

 O Anthers tailed at the base. 

 Suhtrib. 5. INULOIBEJE. Flower -heads heterogamous, discoid or radiate, or 

 homogamous in absence of the ray-florets. Anther- cells terminating in a basal bris- 

 tle or tail. Style-branches linear, obtuse and not appendaged (or the style undivided in 

 the sterile florets). Leaves usually alternate. 



* Female flowers if present ligulate. 



X Bristles of pappus all conform and almost equal, capillary, copious. 

 Inula. Flower-heads heterogamous. Involucre-bracts in many rows, narrow or 

 leafy-appendaged. Ray-florets few, in 1 or 2 rows, disk-florets numerous. Anthers 

 with double tails. Achenes not or 4 — 5-ribbed. Herbs or undershrubs. 



X X Pappus unequal, the outer consisting of short bristles or more 

 usually of minute scales, rarely no pappus at all. 

 + Pappus present (rarely absent). 

 Pulicaria. Flower-heads heterogamous, the ray-florets in 1 or 2 rows, yellow. 

 Involucre broad, the bracts narrow, in few rows, the outer ones herbaceous. Achenes 

 ribbed or not. Bristles of inner pappus in a single row, the outer pappus of very short 

 scales more or less connate into a crown or slit cup. 



