320 University of Californid Fiihlications in Agricullurtil Sciences [Vol. 2 



TABLE 1 



Hoffmann's Key to thl Sections of Crepis with the Addition of Six Species 

 Not Listed by Him and References to Original DRA^VINGs of Achenes 



A. Pappus bristles very short, unequal, the longest scarcely as long as the width 



of the fruit, very readily deciduous; fruit short-beaked. 



Sec. I. Ceramiocephalum Scluiltz Bip.* 

 C. paiida Poir. 



B. Pappus bristles longer. 



(fl) Inner or all the fruits long-beaked. 



Sec. II. Barkhausia Much.* 



Fruits all beaked (outer sometimes shorter than inner), involucre 

 mostly with outer calyx, seldom imbricate. Fig. 1, a, a' ; Fig. 3, d, 

 e, e' g, g'. 

 C. alpina L., taraxacifolia Thuill., hursifolia L., sctosa Hall. f. 



Sec. III. Anisoderis Cass.* 



Outer fruits short-, inner long-beaked. Fig. 2, b, b', c, c'. 

 C. foetida L., rubra L. 

 Sec. IV. Nemauchenes Cass* (in part). 



Marginal fruits not or scarcely beaked, enclosed within the 

 much hardened involucral bracts; ribs prominent, the innermost 

 enlarged wing-like so the fruits seem to be compressed; inner 

 fruits prismatic long-beaked. Fig. 3, h, li'. 

 C. aspera L. 

 (b) Fruits reduced at the apex, but not beaked or only short-beaked. 



Sec. V. Nemauchenes Cass.* (in part). 



Except for the scarcely beaked inner fruits, like IV. Fig. 4, 



C. Dioscoridis L. 



Sec. VI. Cjmiboseris Boiss.*. 



Marginal fruits compressed, 3-angled, the edges winged, enclosed 

 by the inner much hardened involucral bracts, without pappus. 

 Fig. 4, TO, m' , m". 

 C. palacstina Boiss. (Bornm.). 



Sec. VII. Phaecasiiun Cass.* 



Fruits alike in shape with readily deciduous pappus which is 

 mostly absent in the marginal fruits, inner fructiferous involucral 

 bracts much hardened. Fig. 4, n, n', n". 

 C. puJclira I;. 



See. VIII. Aetheorrhiza Cass.* 



Distinct from others by tuberous root-stock, fruits all similar 

 in shape. Fig. 6, u. 

 C. bvlbosa (L) Tausch. 



Sec. IX. Eucrepis DC. 



Koots not tuberous (fusiform or root-stock as though bitten 



off); fruits all alike; involucre with outer calyx; inner fructiferous 



involucral bracts mostly moderately thickened. Fig. 5, o, p, q, r, s, t. 



C. capilMris (L) Wallr., neglccta L., parviflora Desf., tcctornm L., 



biennis L., montana d'Urv. 



* Described as a genus. 



