335 
(ungue brevi late cuneato incluso) 1 em. longum, 9 mm. latum, 
apice truncatum, minutissime emarginatum, callis 5 mm. supra 
basin sitis, 3 mm. longis, 2mm. disjunctis ; alae carinam aequantes, 
1 cm. longae, ungue 2 mm. longo, lamina 8 mm. longa circiter 
6 mm. lata; carina rostratofalcata. Tubus stamineus 5-5 mm. 
4-5-5 mm. latum, densiuscule ferrugineo-hirsutum,—L. madrensis 
Seem. Bot. Herald, 278, t. 53, pro parte minima. 
Sierra Madre, Seemann sine numero (type in Herb. Kew), 
Seemann 2185 partim (Mus. Brit.). 
Seemann collected two strikingly dissimilar species of Lupinus 
in the Western Sierra Madre, one with very long petioles and 
7-10 nearly linear, acuminate leaflets, the other with relatively 
short petioles and 5-7 oblanceolate, cuspidate-apiculate leaflets. 
His description and figures of L. madrensis were taken mainly 
from the former, which must be regarded as the type of that 
species, The following parts of the description and plate of 
L. madrensis refer to the latter, which we have named L. deli- 
catulus: “‘foliolis . . . subovato-oblongis,” “. . . legu- 
mineque hirsutis,” “‘ Legumen about an inch long, 5—6-seeded,” 
“* Fig. 1, an entire leaf of a young plant.” 
L. madrensis and L. delicatulus are represented by separate 
sheets in the Kew Herbarium, the former being numbered 2185, 
and the latter being without number. In the British Museum 
there is only a single sheet, which is the type of Seemann’s plate. 
It is numbered 2185, and has a specimen of L. madrensis on the 
top right-hand corner and one of L. delicatulus on the bottom left 
corner. 
L. madrensis Seem. Bot. Herald, 278 (1856), t. 53 (1854), 
pro parte maxima. 
Sierra Madre, in woods, Seemann 2185 (Herb. Kew et Mus. 
Brit.). Sinaloa. without precise locality, Gonzalez 112. 
Vernacular name “ Piojillo.” 
Hosackia madrensis Sprague et ‘Riley, sp. nov. ; affinis 
H. gracili Benth. a qua foliis superioribus etiam saepe 1-jugis, 
umbellis nunquam foliaceo-bracteatis, alis carinam parum 
excedentibus tantum, alarum et carinae petalorum lamina basi 
truncata nec distincte auriculata differt. 
Caules aciles, filiformes, flexuosi, glaberrimi. Folia 
obovata apice rotundata, ea foliorum superiorum ste 
-obovata, subacuta vel apiculata, utrinque glabra, subtus glauce- 
scentia costa brunnea conspicua. Umbellae 3-5-florae ; pedunculi 
3-4-5 em. longi; pedicelli circiter 1 mm. longi. Calyx 6 mm. 
