BOSACEjTJ. 377 



Again one may rise up and become obliqucl}- ascending, witli its 

 micropyle downwards and inwards. The fruit consists of a variable 

 number of follicles or pods,' and the seeds" contain within their 

 membranous coats a fleshy embryo, either exalbuminous, or more 

 rarely surrounded by a thin layer of cellular tissue.'^ In this 

 genus we also find great variations in habit, vegetative organs, 

 and inflorescence. It consists of shrubs, undershrubs, or herbs, 

 sometimes very humble/ The leaves are alternate, simple, and entire, 

 or lobed, pinnate, or even decompound. The petiole is accompanied 

 by free or adnate lateral stipules, which may, as we have seen, be 

 altogether absent. The flowers are axillary or terminal, in simple 

 or compound racemes, spikes, or corymbs, or in clusters of pluri- 

 parous or even uniparous cymes.' Species of this genus are to be 

 found in nearly all the cold and temperate regions of the northern 

 hemisphere." 



Sjj/'raa trifollatd' (fig. 442) has become the type of the genus 

 Gillenia,^ whose hermaphrodite flower possesses a tubular receptacle, 

 somewhat contracted at the mouth, near which are inserted the 

 calyx and androceum. The calyx consists of five quincuncial sepals,' 

 and the corolla of five long alternating petals contorted in the bud. 



' Some fruits are even indehiscent. Those of producing the greatest abnormalities in the in- 



S. Ulmaria are rolled up like a campylotropous florescence. This is the case with -S'. FiUpendula 



seed. [Dropwort], a plant also remarkable for the swel- 



^ They become quite ascending in certain lings on its roots, from which it takes its name, 



species, such as .S. Lindleyana. Those of S. ^ Camee., De Ulmaria, 1717. — Wald. & 



Aruncus, though similar in other respects, are Kit., PL Ear. Hung., t. 227.— Jacq., Hort. 



pendulous. The singular form of the ripe car- Viiulob., t. 88. — Pall., Fl. Ros^., t. 27, 28. 



pels of S. Ulmaria causes the seeds to assume Cambess., op. cit., 355-385 j Jacquem., Vou. 



every possible direction. In none of these spe- £ot., t. 37. — H. B. K., Xov. Gen. et Spec, vi. 



cies is there albumen, which distinguishes S. 185, t. 5(32. — Toer. & Gk., Fl. N. Amer., i. 



^rawcK* from ,i*^i7ie, to which Teeviraists has, 413. — A. GvulY, Man. of Bot.,ed. v. 119- Fl. 



however, referred it {Bot. Zeit. (1855), 817). Wright. Tex., 54; PI. Fendl., 40. — Chap.m'., J'/. 



^ "In S. parviflora...ipmiri/OMe strata tenui S. Unit. -States, 120. — Wedd., Chlor. And. 



albnminis donato." (B. H., Gen.,G\2.) ii. 231. — Toer.& Gk., Wippl. Rep., 164 (27), t! 



■* Several have even the habit of little csespi- v. — IJenth., Fl. Hongk., Iu5. — Kosb., Fl. Ltd., 



tose Sa.\ifrages, with a rosette of little simple ii. 512. — MiQ,., Ann. 3Ius. Ltigd. Pat., iii. 32- 



entire leaves, without much distinction of blade, Fl. Ind.-Bat., i. p. i. 38D. — Bot. Reg., t. 1365- 



petiole, and sheath. We may cite S. {Petro- 1810, t. 17; 1841, t. 4. — Bot. Mag., t. 515l' 



phytum) ctespUosa Nutt. (ex Toee. & Gr., FL 5165, 5169. — Walp., Rep., ii. 49, 914; v. 657;' 



N. Amer., 414), possessing simple or ramified Ann., i. 287 ; ii. 521 ; v. 666. 



racemes of flowers with long e.xserted stamens ' L., Spec, 702. — Cambess., Ann. Sc. Nat. 



and an entire cupuliform disk. Eriogi/na has scr. 1, i. 387, n. 33. — Bot. Mag., t. 489. 



the laciniate trifid leaves of many herbaceous ^ McEXcn., Meth., Suppl.", 286. Nutt., 



Saxifrages. The names, S. sorbifolia, Ul- Qen.Am.,i.307. — DC, Prorfr., ii. 546. .^pach[ 



tnaria, tkalictroides, sal icifolia, &c., show ■pretty S-it. a Buffon, i. 447.— TouE. & Gr., Fl. N. 



clearly how great are the variations of habit and Amer., i. 412. — A.Geat, Man. of Bot., e'd.v.,150. 



foliage in this genus. — ENDL.,G!e;)., n. 6393.— B. H., Gtn., 613, n. 22. 



' The abortion of certain flowers of the cymes ' The edges of the sepals bear little sessile 



may be joined to the uplifting of the pedicels, glands. 



