152 MR. NUTTALL'S DESCRIPTIONS OF NEW 



T. *ciLiATUM. o- Smooth and erect, but little branched; lower leaves on very long petioles; leaflets 

 cuneate-elliptic or oblong, obtuse, minutely and sharply serrulate ; bractes adnate, subciliate, 

 herbaceous, entire and acutely acuminate ; capituli axillar and terminal, rounded, many-flowered, 

 destitute of involucrum, but subtended by a cicatrised circle of points ; the flowers attached to a 

 cylindric torus, often ending in a long subulate point beyond the capitulum ; segments of the calyx 

 unequal, one of the teeth small, the rest lanceolate, sharply acuminated and bristly ciliated with stiff 

 hairs ; vexillum enclosing the other petals, which are small ; legume flat, stipitate, about one-seeded. 



Stipules herbaceous; the leaves rather thick and strongly veined, with forked 

 vessels ; calyx nearly the length of the ochroleucous flower. This is again a 

 Physantha, but without a proper involucrum. 



Hab. Pueblo de los Angeles, Upper California. 



T. *DENUDATUM. ©. Smooth, stem erect, a little branched, lower leaves on very long petioles ; leaflets 

 obcordate or oboval, minutely and sharply serrulate ; stipules membranaceous, entire and setaceously 

 acuminated ; capituli axillary and terminal, rounded, many-flowered, without an involucrum, but with 

 a cicatrised circle in its place, the flowers attached to a conic torus of the same structure ; segments of 

 the calyx subequal, linear-lanceolate, sharply acuminated, nearly the length of the small ochroleucous 

 flower ; pod stipitate, about two-seeded. 



About a span high ; a rather small annual, and very smooth in every part. 

 Leaflets about three-quarters of an inch long, three to four lines'wide. Flowers 

 small, with the teeth of the calyx very long and conspicuous. 



Hab. With the above, which it much resembles, but the vexillum is not 

 unusually inflated. 



T. *DivERSiFOLiuM. ©. Small and smooth, branching from the base ; leaflets linear or oblong, obtuse, 

 perfectly entire, or repandly and rather sharply serrulate towards the apex ; stipules nearly entire, 

 with subulate points ; peduncles longer than the leaves ; heads very small, eight to ten-flowered ; 

 involucrum six to eight-parted, the divisions entire, ovate, obtuse ; calyx nearly half the length of the 

 short flowers, the teeth simple and acute ; legume two-seeded. 



Remarkable for the diversity of its foliage, some of the leaflets being linear and 

 quite entire, others with the same slightly serrulate ; in other plants they are 

 cuneate-oblong, and even emarginate. The plant about a span high, with reddish 

 flowers and a deep purple tipped carina. 



Hab. Near St. Simeon, Upper California. 



ASTRAGALUS. 



A. §. MiCROLOBiuM. Annual or perennial ? Flowers various. Legume small, 

 scarcely exserted beyond the calyx, one-seeded. 



A. *CATALiNENsis. Q. Nearly erect and much branched ; stipules ovate, distinct, leaflets linear, deeply 

 emarginate, five to seven pair, as well as the stem, scattered with appressed hairs ; flowers ochroleucous, 

 in capitate heads ; segments of the calyx subulate, obtuse, thickly clad with rough white and black 

 hairs, the segments all inclined to the lower side ; legume scarcely exserted, scabrous. 



