SAXIFRAGACE2E. 429 



superior, capsular membranous, loculicidally 3, 4-valved. Seeds oo , 

 inserted in the middle of valves, scobiform ; testa loose sacciform or 

 subalate ; albumen fleshy thin ; embryo central cylindrical. — Per- 

 ennial glabrous scapigerous herbs ; " radical" leaves alternate petio- 

 late, oblong ovate or reniform ; scape angulate, 1 -flowered, folli- 

 ferous to middle, sometimes polyphyllous (Cold regions and Temperate 

 marshes of Northern Hemisphere, mountainous India). See p. 337. 



V. FEANCOEiE. 

 21. Francoa Cav. — Flowers hermaphrodite regular; calyx 4- 

 partite regular, valvate or slightly imbricate. Petals 4, alternate, 

 equal, imbricate or contorted. Stamens 8, 2-seriate (4 longer 

 alternipetalous), slightly perigynous with perianth ; filaments free ; 

 anthers oblong, introrse 2-rirnose. Glands 8, inserted with stamens 

 and alternating, erect. Germen free oblong, 4-gonous, 4-lobed at 

 apex ; cells 4, complete or incomplete, oppositipetalous ; ovules co , 

 anatropous, inserted in internal angle ; style short, soon dilated into 

 4-partite urceolate stigma. Capsule surrounded at base by per- 

 sistent calyx, coriaceous elongated 4-gonous, 4-lobed, septicidally 4- 

 valved ; valves coherent, septiferous in middle, receding at apex from 

 persistent style. Seeds oo , small oblong curved ; testa loosely 

 membranous corrugated-striolate ; albumen fleshy ; embryo axile 

 terete small. — Perennial herbs, glandular- pilose or tomentose ; 

 rhizome thick perennial ; leaves alternate crowded, lyrate-pinnatifid 

 or pinnate, glandular-dentate or sublobate, net-veined ; attenuated 

 base tapering subalate imitating petiole ; stipules ; flowers in simple 

 or more rarely branching racemes, bare at base and erect; flowers 

 (rarely 5-merous) bracteate ; bract more or less carried up with 

 axillary pedicel {Chili). See p. 339. 



22. Tetilla DC. — Flowers irregular ; calyx 4-partite ; sepals 

 unequal ; posterior larger ; praefloration valvate. Petals 4 ; anterior 

 2 much smaller or 0. Stamens 8, 2-seriate ; posterior larger. Glands 

 as many, alternating with stamens, erect, subclavate at apex. 

 Germen 2-4-celled and style of Francoa. Capsule oblong papyr- 

 aceous, 4-lobed, loculicidally 4-valved. Seeds go , very small oblong ; 

 testa thin striolate ; embryo minute subterete, axile in fleshy albu- 



