'LEPTARRHENA SAXIFRAGACEZ. 189 
7. Bolandra. Petals 5, linear, persistent: stamens 5, inserted in the 
throat of the calyx: carpels 2, united at base free from but included 
in the inflated calyx. 
8. Hemieva. Petals persistent: stamens 5, inserted on the throat of 
the calyx: carpels united and wholly adnate to the tube of the calyx: 
leaves not peltate 
+ % Ovary 1-celled, with 2-3 parietal or basal placents alternate 
with the styles or stigmas; ; filaments all antheriferous. 
9. Leptaxis. Petals 4, filiform, entire, persistent: stamens 2-3, in- 
serted in the throat of the calyx: capsule 2-valved, attenuate below 
to a stipe, free from the calyx. 
10. Tellima. Petals 5, deciduous, pectinately lobed or parted: stamens 
9 or 10, short, inserted in the throat of the calyx: capsule 2-valved, 
sessile, adnate to the base of the inflated calyx. 
11. Lithophragma. Petals 5, deciduous, unguiculate, palmately lobed 
or entire: stamens 5 or 10, inserted in tre throat of the calyx: cap- 
sule mostly 3-valved, free or adnate to the base of the calyx. 
12. Mitella. Petals 5, deciduous, pinnately lobed or parted: stamens 5 
- or 10, very short, inserted in the throat of the calyx: capsule 2- 
valved, depressed, adnate to the Base of the calyx: inflorescence 
racemose, 
18. Mitellastra. Stamens 5, included connivent: petals 5, deciduous, 
styles 2, recurved: inflorescence cymose. 
14. Tiarella. Petals 5, entire: stamens 10, inserted at the base of the 
calyx: capsule very unequaily 2-valved, free from the calyx. 
15. Heuchera.: Petals 5, entire, deciduous: stamens 5, inserted in the 
throat of the calyx: capsule equally 2-valved, the lower half adnate to 
. the calyx. 
16. Chrysosplenium. Petals always a stamens 8-10, short, 
‘inserted in the throat of the calyx: capsule short, equally 2-valved, 
the lower half adnate to the calyx. 
* * * Ovary 1l-celled, with 3-4 parietal placentez directly under 
as many obtuse sessile stigmas: stamens 5, alternating with as git 
clusters of united sterile filaments. 
17. Parnassia. Petals 5, large: calyx 5-parted, free from the ovary: 
flowers solitary. 
1 LEPrFARRHENA R. Rertie: Parry’s ist voy. Suppl. 273. 
Herbs with coriaceous persistent leaves crowded at the base of 
the nearly naked stems and rather numerous flowers in bracted 
paniculate racemes. Calyx campanulate, 5-parted, the base 
adherent to the ovary. Petals 5, entire. Stamens 10, inserted 
into the tube of the calyx: filaments subulate: anthers 1-celled, 
2—valved. Ovary of two nearly distinct carpels, tapering into 
very short styles. Seeds numerous, ascending, scobiform ; the 
testa loose, elongated and subulate at both ends, including the 
oval: nucleus. 
L. pyrolifolia Ser. DC. Prodr. iv, 48. Scape-like stems 8-16 inches 
high, rigid, a little pubescent or glandular toward the summit, and 1-2 
small leaves with sheathing petioles near the base; radical leaves obovate 
to oblong or spatulate, 1-6 inches long, coriaceous, glabrous both sides, 
coarsely serrate above the middle, attenuate below. toa short winged 
