72 Rydberg : Rocky Mountain flora 



Pseudopteryxia longiloba Rydb. sp. nov. 



Densely cespitose perennial with a thick root and short caudex, 

 covered by numerous old leaf-sheaths and petioles; leaves twice 

 pinnatifid, with linear-subulate, pungent divisions; peduncles 2-3 

 dm. high, stout; bractlets linear-subulate, spreading, often 1 cm. 

 long; flowers yellow; fruit about 6 mm. long; lateral wings thick, 

 narrow, some of the wings of the dorsal ribs often fully as broad; 

 calyx-teeth less prominent than in P. anisata. 



This is closely related to P. anisata, differing in the larger fruit 

 (in P. anisata about 4 mm. long), and longer leaf-segments. On 

 account of the long leaf-segments, specimens collected in flower 

 by Carlton and myself were mistaken for Cynomarathrum Nuttallii 

 (A. Gray) C. & R.; but good fruit was received in the summer of 

 1911. 



Utah: Abajo Mountains, Aug. 17, 191 1, Rydberg & Garrett 

 9761 (fruit; type, in herb. N. Y. Bot. Gard.); also 9760 (fruit); 

 La Sal Mountains, July 7 and 17, 8724 and 9015 (young fruit); 

 Mountains north of Bullion Creek, near Marysvale, July 23, 

 Rydberg & Carlton 7085 and 7096 (flowers); Mount Ellen, July 

 24 and 25, 1894, M. E. Jones 5677 (fruit, but poor). 



Pseudopteryxia aletifolia Rydb. 

 Pseudocymopterus aletifolius Rydb. Bull. Torrey Club 31: 574. 



1904. 



Neither can Pseudocymopterus bipinnatus be retained in the 

 genus; in fact, it is still more out of place. Not only is the habit 

 strikingly different from that of P. montanus, but the fruit is not, 

 as Coulter and Rose described it, "moderately flattened dorsally," 

 for the fruit when well developed is moderately flattened laterally, 

 which places it in the other division of the family. Furthermore, 

 the seed face is concave, the bractlets broad and scarious, and a 

 stylopodium, although strongly flattened, is present. Were it 

 not for these characters of the fruit the plant could be placed in 

 the same genus as P. anisatus. As it is, its relationship is with 

 Daucophyllum and Aletes. I would place it in Daucophyllum 

 were it not for the winged ribs, the concave seed face and the 

 reflexed style. The fruit is nearer that of Aletes, but the oil tubes 

 are several, the ribs winged, styles reflexed and stylopodium 

 present. If a person were using the key given by Coulter and Rose 



