MiTELLA. SAXIFRAGACE^. 585 



nearly free from the calyx. — Tellima (Lithophragma) licteropliylla, Hook. 

 ^' Ant. hot. Bcfchey, suppl. p. 34(>. 



In slin'ly jjlaces, St. IJarbara, Califomia, Douglas! NutUilL ! April. — 

 Stem rj-15 inclics liigli. Leaves varial)lo in size and form; the radical 

 ones rcsembliiiir tiiose of Mitella niida. Raronio f;-12-f lowered; tlie flowers 

 rather large. Calyx truncate at the base. Petals pale rose-color. 



§ 2. Petals spatulate-cuneiforrn, entire: caljjT cyathifomi-campanulate, ncuThj 

 free from the ovary. — Lithophragmella. 



5. L. Cymbalaria : minutely glandular-scabrous or nearly glabrous; stem 

 very slender ; radical leaves reniform, slightly 3-6-lobed, the lobes rounded 

 and entire ; the cauliue 2, nearly opposite, 3-cleft, on slender y)e(ioles; ra- 

 ceme few--flowered ; the pedicels longer than the calyx; petals much ex- 

 serted. — Saxifraga Californica, Null. ! mss. 



Sfiady woods near St. Barbara, California, Nuttallf — (H Nult.) Stem 

 weak, G-10 inches in length. Leaves small, membranaceous, glabrous ; the 

 pair of cauline ones near the middle of the stem. Flowers about as large as 

 in Saxifraga stellaris. Lobes of the calyx ovate-triangular, obtuse, rather 

 shorter than the tube. Petals nearly white, thrice the length of the calyx, 

 inserted in the sinuses, obtuse, taperini; ])elow into a slender claw. Fila- 

 ments scarcely longer than the cordate-oblong anthers. Styles sometimes 2 

 (fide Null.), very short. — Mr. Nuttall had remarked the accordance of this 

 plant with Lithophragma in habit, as appears from his manuscript notes; 

 but we find a perfect agreement in structure with this genus, excepting the 

 undivided petals. 



8. MITELLA. Tourn. ; Lam. ill. t. 373 ; Hook. Jl. Bor.-Am. 1. p. 240. 



Mitella & Drummondia, DC. — Mitella & Mitellopsis, Meisn. 



CalyTC short, campanulate, more or less coherent with the ovary, 5-cleft : 

 ffistivatiou valvate. Petals 5, pectinately pinnatifid (rarely 3-cleft), inserted 

 into the throat of the calyx. Stamens 5 or 10, included : anthers cordate or re- 

 niform, 2-cellcd. Styles 2, short, distinct. Capsule 1 -celled, with 2 parietal 

 or somewhat basilar many-seeded placentfc, 2-valved at the summit. Seeds 

 obovoid, horizontal or ascending : testa crustaceous, smooth and shining, ob- 

 scurely punctate. — Perennial herbs, with mostly radical cordate somewhat 

 lobed and crenate leaves. Scapes slender. Flowers small, in a simple 

 spicate raceme. Bracts scarcely any. 



We accord with Hooker as to the extent of this genus, and the discovery of a 

 true Mitella with only 5 stamens confirms our view. The styles aro not uuitcd 

 in Mitella proper, as they are said to bo by De Candollo and Endlicher. 



§ 1. StamcMS 10 ; filaments short : calyx adherent to the base of the ovary 

 only : stigmas obtuse or simple : placenta ovuliferoxis toward the base of the 

 ovary: mature seeds feiv, ascending : scape witJi 1-2 alternate or opposite 

 leaves., or naked. — Eumitella. 



•--^l. M. diphylla (Linn.) : leaves cordate, acute, somewhat 3-5-lobed, ser- 

 rate-toothed, the radical ones on long petioles ; die cauline 2, opposite, near- 

 ly sessile ; scape many -flowered ; styles very short. — Linn. ! spec. 1. p. 406 ; 



74 



