220 UNIVERSITY OF MISSOURI STUDIES [S^-J 



go8. V. peralta Daniels. Nov. spec. 



Stems very tall, 2-3 metres in height, rather sparingly to- 

 mentose except above; leaves very long, 2-3 dm. in length, ob- 

 long-lanceolate, long acuminate both at base and apex, 

 coarsely and sharply serrate, rugose and tomentose under- 

 neath, roughish above; cymes paniculate, immense, often 

 over 5 dm. in length, the primary branches leafy, the pedun- 

 cles slender and seldom thickened upwards, central heads 

 sessile or short peduncl'ed; heads medium, hemispheric, 6-8 

 mm. high; bracts ovate, purplish, the acuminate tips spread- 

 ing and moderately reflexed; pappus purplish, 8-12 mm. 

 long; achenes 4-5 mm. long, nearly smooth, or slightly can- 

 escent, the furrows between ribs relatively deep. 



Occasional in fields and blossoming late, the exceedingly 

 long leaves and the paniculate cymes, several decimetres in 

 length, make it a conspicuous plant when in bloom. At a 

 distance it looks much like V. altissuna Nutt., but close by 

 all similarity vanishes, the plant belonging rather to the V. 

 Drummondii group. 



909. V. pseudobaldwinii Daniels. Nov. spec. 



Stems low, i to ij^ metres in height, softly white tomen- 

 tose; leaves ovate-lanceolate below, linear-elliptic above, acu- 

 minate, sharply and coarsely serrate, the upper subentire, the 

 under surfaces softly tomentose, the upper only slightly sca- 

 brous; cymes small, 1-2^ dm. broad, all heads pedunculate, 

 the central only shortly so, the peduncles not thickened up- 

 wards; heads small to medium, 4-5 mm. high; bracts ovate- 

 lanceolate, the upper portions red-purple, the tips acute and 

 obviously reflexed; pappus deep reddish-purple; achenes 

 short, 3 mm. long, the ribs softly barbed. 



Very common in iields and pastures, blossoming a little 

 later than V. Baldwinii Torr. The plant is intermediate be- 

 tween V. Ulterior Small and V. Baldwinii Torr. It, however, 

 is much more abundant than typical V. interior Small. If 

 V. psezidobaldwijiii Daniels and the following species are 

 hybrids, then both V. iiiterior Small and V. Drummondii 

 Shuttlw., at least in upland pastures, exist here only in a 

 hybridizing condition, the number of typical forms appear- 



