142 KOSB FAMILY. 



5. GILLENIA. Herbs, with nearly white flowers and almost sessile leaves of 8 leaflets. 



Calyx narrow, oblong, 5-toothed, enclosing the 5 pistils (which at first lightly cohere 

 in a mass) and the little pods. Petals rather unequal, lance-linear. Stamens 10-20, 

 not projecting. 



# * Ovaries few or many, single-ovuled, becoming dry akenes in fruit above the open 



and mostly spreading calyx ; stamens numerous. 



<- Pistils few, only 2-8. 



6. KERRIA. Shrub, with long green branches, simple and coarsely toothed alternate 



leaves and yellow flowers terminating the branchlets of the season. Calyx with 5 

 somewhat toothed large lobes. Petals 5. 

 T. RHODOTYPOS. Shrub, with large, opposite leaves. Petals 4. Sepals large, becom- 

 ing leaf-like in fruit. Akenes as large as peas, jet-black and shining. 



8. WALD8TEINIA. Low perennial herbs, with chiefly root-leaves, either lobed or com- 



pound, and a few yellow flowers on a short scape. Calyx with a top-shaped tube and 

 5 spreading lobes, alternate with which are sometimes 5 minute teeth or bractlets. 

 Petals obovate. Styles deciduous by a joint. 



+- +- Pistils numerous and heaped in a head; calyx (except in one, Geum) augmented 

 with additional outer lobes or bractlets alternating with the 5 proper lobes; leaves 

 mostly compound. 



9. GEUM. Perennial herbs. Calyx with a bell-shaped, top-shaped, or hemispherical tube 



or cup. Akenes narrow, or tapering to the base, tipped with the long persistent 

 style, or the greater portion of it, in the form of a naked or hairy tail. Seed erect. 

 Receptacle dry, conical, or cylindrical. 



10. POTENTILLA. Herbs, or one species shrubby. Calyx flat or widely open. Akenes 



small, on a dry receptacle, from which they at length fall. 



11. FRAG ARIA. Perennial, small, and stemless herbs, producing runners after flowering. 



Leaves compound, of 8 leaflets. Calyx open, flat. Styles short and lateral. 

 Akenes naked, small, on the surface of an enlarged pulpy edible receptacle. (Les- 

 sons, p. 118, Fig. 860, and p. 118, Fig. 868.) 



* * * Ovaries several or many, 2-ovuled, in fruit becoming fleshy or pulpy and i-seeded, 

 forming a head or cluster above the flat or widely open simply 6-cleft calyx ; stamens 

 numerous ; styles short, naked, at length falling off. 



12. DALIBAEDA. Very low perennial tufted herb, with simple, rounded-heart-shaped 



or kidney-shaped root-leaves and 1-2-flowered scapes. Calyx of 5 or even 6 unequal 

 sepals. Ovaries 6-10, in fruit merely fleshy, becoming almost dry and bony. 

 18. EUBUS. Perennial herbs or shrubby plants. Ovaries numerous, in fruit pulpy (berry- 

 like, or more properly drupe-like, the inner hard part answering to the stone of a 

 cherry or peach on a small scale), crowded on the dry or fleshy receptacle. (Lessons, 

 p. 118, Figs. 869, 870.) 



§ 2. Calyx with an urn-shaped dry tube, contracted or nearly closed at the mouth, and 

 inclosing 1-4 Uttle pistils which become akenes. Flowers small; petals none 

 except in Agrimonla. 



14. ALCHEMILLA. Low herbs, with palmately lobed or compound leaves, and minute 



greenish flowers, in clusters or corymbs. Calyx with 4 inner and 4 outer or acces- 

 sory spreading lobes. Petals none. Stamens 1-4. Pistils .1-4, with lateral styles. 



15. AGRIMONIA. Herbs, with interruptedly pinnate leaves, and flowers in slender 



terminal spikes or racemes. Calyx with the top-shaped tube beset with hooked 

 bristles just below the 6 green lobes, the latter closing together in fruit. Petals 6, 

 commonly yellow, broad and spreading. Stamens 6-15. Pistils 2; styles terminal. 



16. FOTERIUM. Herbs, with odd-pinnate leaves, and white, purple, or greenish flowers 



(sometimes dioecious) in dense heads or spikes on long, erect peduncles. Calyx with 

 a short, 4-angled, closed tube, surmounted by 4 broad and petal-like at length decid- 

 uous lobes. Petals none. Stamens 4-12 or more, with long and slender projecting 

 filaments. Pistils 1-4 ; the terminal styles tipped with a brush-like or tufted stigma. 



