288 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 13 
but thought that it might be referred to the subtribe Tagetineae. 
In the Synoptical Flora he transferred it to the subtribe Jaumieae, and 
was followed by Hoffman in Engler and Prantl’s Natiirlichen Pflanzen- 
familien. When I prepared the manuscript of that subtribe for the 
North American Flora I was not so well acquainted with the variations 
displayed in the subtribe Tagetineae, and let it remain in the position 
givenby Gray and Hoffman, though I felt thatitwas outof place. The 
bracts of the involucre are striate by black ducts which evidently are 
to be regarded as elongated resin glands. Such black markings, though 
very short, are found also on the leaves, especially the reduced upper 
ones. It is now evident to me that the genus should be transferred 
to the tribe Tageteae. The other genera of Jaumeanae lack this 
resmous striation as well as the fimbrillae on the recptacle. 
The type of the genus, collected by Berlandier at Laredo, Texas, is 
rather unsatisfactory, being mostly out of flower, but Hooker illus- 
trated it in his Icones (pl. 1105) from better material. The plant 
was reported by Gray as collected by Havard along the Pecos River 
and it was found by Rose at Brownsville in 1913 (no. 18096). ‘The 
latter specimens show the characters of the genus very well. 
Clappia suaedaefolia was also reported by Wooton and Standley in 
their Flora of New Mexico,! but the specimens on which this record 
was based do not belong to it and I suspect that it may be the case with 
Havard’s specimens mentioned above. If Wooton and Standley’s 
material is compared with type of Clappia or with Rose’s specimens of 
the same, it is evident that the resemblance is only superficial and 
consists only in the same general habit, and that the former does not 
even belong to the genus Clappia. I was inclined to refer the speci- 
mens to the genus Senecio, but Dr. Greenman, who knows that genus 
much better than myself, was not willing to include them and I there- 
fore propose the following new genus. 
Pseudoclappia Rydberg, gen. nov. 
Shrubs with glabrous, straw-colored or white branches. Leaves linear, 
subterete, fleshy, alternate or subopposite. Heads radiate, solitary, pedun- 
cled, terminating the branches. Involucre turbinate, without caliculum; 
bracts about 9, linear, somewhat fleshy, in 2 subequal series. Receptacle 
naked, alveolate. Ray-flowers 4 or 5, the ligules linear-oblong, 5-7-nerved. 
Disk flowers about 15, the tube narrow, shorter than and grading into the 
narrowly somewhat funnelform throat, the 5 lobes short, deltoid. Anthers 
with deltoid tips. Style-branches subulate-filiform, minutely hairy. Achenes 
prismatic, 5-ribbed, hispidulous. Pappus of numerous stiff bristles. 
1 Contr. U. S. Nat. Herb. 19: 719. 1915. 
