190 SMITH: STUDIES IN THE GENUS LUPINUS 
peninsula, etc. The flowers are white or tinted with rose-pink, 
commonly large and showy. The pods are conspicuously secund. 
CALIFORNIA. San Mateo County: serpentine rock west of 
San Mateo, 26 Mar., 1894, W. R. Dudley (Typr, DS); Pilarcitos 
Lake and Canyon, 21-23 June, 1893, J. B. Davy 1151 (UC); 
Crystal Springs Lake, 1 May, 1902, C. F. Baker 850 (US); near 
San Mateo on the Half Moon Bay road, 23 May, 1907, A. A. 
Heller 8561 (DS, US); Lake San Andreas, June, 1903, A. D. E. 
Elmer 4847 (US, NY); San Mateo Canyon, 31 May, 1908, C. P. 
Smith 1442. Marin County: without definite locality, 4 June, 
1895, I. Tidestrom (UC). 
6p. Lupinus densiflorus persecundus var. nov. [FicG. 33.] 
Humilis, 5-15 cm. altus, ramis brevis subpandentibus, pedun- 
culis eorum plerumque plus pandentibus; foliis congestis, viridis, 
peculiaribus; petiolis 3-8 cm. longis, pilis 1 mm. longis, laxe panden- 
bcm. 
Fic. 33. LUPINUS DENSIFLORUS PERSECUNDUs C. P. Smith. M.E. Jones 3320 (US). 
tibus; foliolis6—8, prope 20 mm. longis, 4-6 mm, latis, acutis , superne 
sublevibus, inferne laxe pubescentibus: pedunculis foliis aequan- 
tibus vel ea excedentibus, laxe pubescentibus, racemis aliquantum 
deflexis; verticillis 1-4, distinctissimis, floribus manifeste secundis, 
prope 16 mm. longis; pedicellis 1.5-2 mm. longis; calyce ebrac- 
teolato, 9 mm. longo, 4-5 mm. lato, laxe pandentibus pubescente, 
pilis vix 1 mm. longis, labio superiore 3 mm. longo, emarginato, 
inferiore 3-dentato, dento medio lateralibus minore interdum 
vestigio; petalis atro-purpureis, praesertim ad dimidia externa; 
vexillo 12 mm. longo, 10 mm. lato, apice rotundato, abrupte con- 
