96 FUMARIACEAE 



Perennials with thickened roots; corolla white or tinged with purple. 



Bracts spatulate or oblanceolate, about 1 cm. long; dorsal crest of the hood narrow. 

 Sepals reniform, laciniate. 5. C. Cusickii. 



Sepals narrowly hastate, with large toothed basal lobes. 6. C. hastatum. 



Bracts linear; dorsal crests of the hood obsolete. 



Corolla 2 cm. long; sepals broadly ovate, obtuse, their auricles subentire; pod 



lance-obovoid. 7. C. Brandegei. 



Corolla 1..5 cm. long; sepals ovate, acute, their auricles toothed; pod broadly 

 obovoid. 8. C. brachycarpum. 



3. FUMARIA (Tourn.) L. Fumitory. l. F. officinalis. 



Family 52. BRASSICACEAE. :\Iustard Family. 



I. Pod sessile, or short-stipitate (in no. 48-5,3); sepals erect, ascending, or connivent in 

 anthesis (except m 32, 33 and 53) ; anthers not twisted (e.xcept in no. 48 and 50- 

 53). 



A. Pod compressed or flattened contrary to the narrow partition. 



Pod not didymous; plants not densely stellate, except in Smelowskya. 



Pod orbicular, oval, oblong or cuneate, strongly flattened; plant not stellate. 

 Pod 1-celled, winged all aroiuid. 1. Isatis. 



Pod 2-celled, not winged all around. 

 Cells of the pod 1-seeded. 



Pods ovate-cordate, acute at the apex, neither winged nor retuse. 



2. C.\RD.U?IA. 



Pods orbicular, elliptic or rarely ovate, retuse or notched at the 



apex, usually winged above. 3. Lepidium. 



Cells of the pods 2-seeded. 



Pods more or less winged; cotyledons accumbent; hairs of the plant 



simple or none. 4. Thlaspi. 



Pods wingless; cotyledons incumbent. 



Pods cmieate; plants with branched hairs. 5. Bursa. 



Pods eUiptic; plants glabrous or minutely stellate. 



6. HUTCHIXSIA. 



Pod ovate or lanceolate, not strongly flattened; plant stellate. 



7. Smelowskya. 

 Pod more or less didymous; plants stellate. 



Seeds solitary in each cell; pods strongly flattened. 8. Dithyrea. 



Seeds several in each cell; pods more or less inflated. 9. Physari.\. 



B. Pod neither compressed nor flattened contrary to the partition. 

 I. Anthers not sagittate at the base, not twisted. 



a. Pod terete or tetragonal. 



t Pod short, scarcely more than twice as long as broad. 

 Cotyledons accumbent; valves of the pods nerveless. 



Pubescence stellate or canescent with branched hairs; seeds flat. 

 Petals white, 2-cleft. 35. Berteroa. 



Petals yellow or tinged with red, not 2-cleft. 



10. Lesquerella. 

 Pubescence not stellate; seeds terete. 



Petals white; stout perennials with a thick taproot. 



14. Armoracia. 

 Petals yellow or ochroleucous, rarely white; annuals, or perennials 



with rootstocks. 15. Radicul.\. 



Cotyledons incumbent or folded transversely; valves of the pod 1- 

 nerved; pubescence if any not densely stellate. 

 Submerged water plants, with subulate leaves; pods subglobose or 



eUiptical. 11. Subul.\rl\. 



Land plants with ample leaves. 



Capsule obovoid, dehiscent, many-seeded. 



12. C.^meltxa. 

 Capsule globose, indehiscent, 1-2-seeded. 13. Nesija. 

 1t Pod long, several times as long as broad. 



* Pod scarcely beaked, merely tipped by a short style or a sessile 

 stigma. 

 X Pod terete or nearly so. 



Pubescence of simple hairs. 



Seeds in two rows in each cell of the pod. 



Seeds globose or oblong, turgid; valves of the pod nerve- 

 less; cotyledons accumbent. 

 Petals with a median nectary, usually yellow. 



15. Radicula. 

 Petals without nectary, wliite. 16. Sisy^mbrium. 



Seeds flattened; valves of the pod l-nerved: cotyledons 

 partly incumbent. 17. TURRITIS. 



Seeds in 1 row in each cell of the pod. 



Pod subulate, tapering from the base to the apex. 



18. Ery.simum. 

 Pod cylindric or tapering both ways. 

 Perennials with creeping rootstocks. 



46. Schoexocrambe. 

 Annuals, or perennials with taproots. 



