430 ROSACEA. Agrimonia. 



in the iiiduratod glofhi(li;ilc-ef;hinato calyx-tube. Seed suspended. — Peren- 

 nial lierLs or low sutthitescent plants. Leaves unequally pinnate : leaflets 

 serrate or incised. Flowers in crowded racemose .spikes or heads. 



1. A. jnnnaiijic/a (Ruiz & Pav.) : flowers in a cylindrical crowded spike, 

 the lower ones somewhat remote; stem erect; leaflets linear-lanceolate, 

 incised [sometimes deeply pinnatifid], hirsute beneath. DC. — Euiz 

 Pav. Jf.. Per. 1. p. 68, t. 104, /. 1 ; Lindl. hot. reg. t. 1271 ,• Hook. 

 Am. ! in hot. misc. 3. p. 307, &f hot. Beechey, siqypl. p. 339. 



California, Douglas! — The Califoniian plant is said by Hooker & Ar- 

 nott to accord with their var. y. of the Cliilian A. pinnatiflda, which seems 

 (o vary greatly in its foliage. The leaflets in this form are deeply pinnatifid, 

 with very narrow segments, and the upper i)art of the stein is almost 

 lomentose. The 5 calyx-segments are articulated with the tube, thick and 

 coriaceous : the stamens are usually 3. 



14. ADENOSTOMA. Hook. S; Am. hot. Beechey, p. 139, t. 30 ; S^-p. 338. 



Calyx infundibuliform-campanulate, 10-striate, 5-toothed ; the teeth 

 colored, short and broad, mucronulate-acute, spreading ; the throat scarcely 

 contracted, furnished with 5 transverse oblong fleshy glands. Petals 5, 

 orbicular, scarcely unguiculate, spreading. Stamens 9-15, erect-spreading, 

 inflexed in aestivation : filaments filiform : anthers roundish. Ovary obo- 

 vate, with a single or 2 collateral suspended ovules, obliquely truncate and 

 pubescent at the summit : style terminal or nearly so, flexuous, included : 

 stigma thickened, obtuse. Achenium coriaceous, 1 -seeded, included in the 

 indurated tube of the calyx. — -A rigid glabrous evergreen shrub, with nume- 

 rous branches. Leaves sessile, densely fascicled, rigid, linear-acerose, uith 

 minute scale-like stipules. Flowers small (while), clustered in short spikes, 

 which are disposed in compound dense terminal panicles : bracts numerous, 

 minute. 



A. fasciculata (Hook. & Am. ! 1. c.) 

 a. leaves mostly acute, slightly petioled. 



iS. leaves shorter and thicker, sessile, usually obtuse. — A. brevifolia, 

 Mitt.! viss. 



On the declivities of mountains, St. Barbara, St. Francisco, and Monterey, 

 California, Beechey, Douglas! Nuttall! /?. St. Diego, Nuttall! May. — 

 This singular shrub has somewhat the habit of Tamarix, as Mr. Nuttall 

 remarks. The rigid somewhat triangular leaves are about half an inch in 

 length (m var. /?. shorter), and are inclined to fall in dried specimens. Mr. 

 Nuttall proposes to form a distinct section or tribe for its reception (Adeno- 

 stomaceee, Nutt.) ; but we leave it for the present in Sanguisorbe<"B, wiih 

 which it has many points of resemblance : in foliage it is not unlike 

 Margyricarpus. 



15. AGRIMONTA. Town. inst. t. 155 ; DC. prodr. 2. p. 587. 



Calyx turbinate, armed with hooked bristles above, contracted at tlie 

 throat; the limb 5-cleft, connivent after flowering. Petals 5. Stamens 



