338 
elatth (species ' 21) Hemsl. Biol. i. 239, partim, non Mart. et Gal. 
Sierra Madre, Seemann. 
D. Seemannii S. Wats. in PAA. xxii. 470 i 1887).—Parosela 
Seemannii Rose; N. Am. Fl. xxiv. 88; CNH. x 
Sierra Madre, Seemann (Gray Herb: , pean 2188 (Herb. 
w). 
The type of D. Seemannii is.a specimen (apparently without 
number) in the Gray Herbarium collected by Seemann in the 
Sierra Madre. It:is probably a duplicate of Seemann’s no. "2188, 
Both Rydberg and Standley cite D. Ehrenbergit Schlecht. as 
being possibly conspecific, but a study of Schlechtendal’s descrip- 
tion reveals too many points of difference for their view to. be 
accepted. The leaflets of D. Seemannii are rounded or emarginate 
at the apex, and the glands on the lower surface are conspicuous 
to the naked eye. D:Ehrenbergit has mucronate leaflets, and the 
glands on the lower surface are hardly visible without a lens. 
It seems to differ also in the spreading branches, the dense white 
indumentum of the younger parts, and the larger leaves and, 
leaflets. 
D. sericocalyx (Rydb.) Riley, fetal nov.—Parosela sericocalyx 
Rydb. in N. Am. Fl. xxiv. 63 (1919); CNH. xxiii. 451. Dalea 
lachnostachys Seem. Bot. Herald, 279 (1856), partim; Hemsl. 
Biol. i. 242, partim; non A. Gray. 
Sierra Madre, Seemann 2182. | 
D. similis. Hemsl.; Biol. i. 246.—Parosela similis Rose; 
N. Am. Fl. xxiv. 80. Dalea flava Seem. Bot. Herald, 280, non 
Mart. et Gal. 
Cerro de Pinal, Dec. 1848, Seemann 1533. 
sp. 
"San Ignacio: Cordon de Balboa, 1060 m., Gonza lez 787. 
:. More complete material is required before the species can 
be satisfactorily determined. | 
_ Indigofera discolor Rydb. in N. Am. FL Xxiv. 147 Beny: Lodiego, 
Palmer 1634. 
I. mucronata Spreng.; Hemsl. Biol. i, 251, exel. syn.;) CNH. 
xxii. 440, 
Sinaloa (fide Standley). 
Fawcett and Rendle (Fl. Jam. iv. part 2,17 follow Grisebach 
in reducing I. mucronata to I. subulata Poir., but Urban (Symb. 
Antill. viii. 281) keeps the two species: distinct. Hemsley, 
followed by Standley. reduced J. torulosa Hook. et Arn. to J. 
mucronata, but an examination of the type of the former shows 
that it is undoubtedly distinct. J. torulosa has ascending or 
suberect torulose legumes, which are distinctly stipitate and 
terminate in a long acute beak (6-7 mm. long). The leaflets 
are acute with hairs about 0-3 mm. long. The axes of these hairs 
are directed outwards at an average angle of 60° with the midrib 
of the leaf.. I. mucronata: has reflexed non-stipitate non-torulose 
legumes with much shorter beaks. The leafiets are rounded or 
