8S 



KEY TO THE FAMILIES AND GENERA 



B, Val\-es apix-ndaeed .... 15. .ln.i.<(<i(ic<i. 



(Sec jirlicle Resurrection rhints.) 

 BB. Valve.-* not iinpendngeti. 



r. Stiginiitio lol>r8 ereel, connate or 

 (lecurrent aUini; the style, 

 o. Plants are lierbs or branched 



.«ub-shrubs: woolly 1('>. Malllnola, 



oa. Phints are tutted. scape-bcarinE 



herbs '"• I'arrya. 



TT. Stigma undivided or shortly 



lobcd. , . , , 



o. Valves elastic: seeds in 1 or J 



.«eries, .siliquc long and linear.. 18. .4ra6is. 

 OG. Valves not elastic. 



u. Sepals iineiiual, the lateral 



ones saccate at the base 19. Cheiranlhus. 



BH. Sepals equal. 



1. Seeils in 2 series 20. Kailictila. 



II. Seeds in 1 series. 



J. Fls. yellow 21. Barbarea. 



jj. Fla. white or purple. 



K. Hhizoine not scaly; 

 valves delicately net- 



led-iiervcd 22. Cardami7ie. 



KK. Rhizome scaly: valves 

 with very delicate 



midrib 23. Denlaria. 



DD. Seeds in 2 series and siliques short and 



broad (except in some species of 



Aubrietia. Draba and Cochlearia). 



E. Siliques 2-locular, mauy-seeded; 



seeds much compressed, winged or 



margined. 



F Lvs. entire or dentate: sihquea 



long-stalked, very broad 24. Lunaria. 



rr. Lvs. pinnatisect ; sihques sessile ... 25. Selenia. 

 EE. Siliques 1-2-loculed, 2- to many- 

 seeded; seeiis rarely winged; valves 

 often ttirgid. 

 r. Sepals often une(iual, the lateral 

 saccate at the base. 

 o. Fls. purple: siliques oblong: . 



lateral sepals saccate 20. Aubrieha. 



GO. Fls. generally yellow; siliques 

 mo.stly oblong; sepals equal or 



unequal 27. Vesicana. 



FT. Sepals equal. 



o. Stamens often appendaged 28. Alyssum. 



GO. Stamens not appendaged. 



H. Plants tomentose 29. Draba. 



HH. Plants glabrous 30. CoMmna. 



(See also Kernera.) 

 CCC. Cotyledons incumbent, straight, con- 

 volute or transversely plicate. 

 D. The cotyledons tran.svcrselybiplicate...31. Heliophila. 

 DD. The cotyledons not transvcr.sely bipli- 



E. Petals pinnatifid 32. Schizopet- 



EE. Petals not pinnatifid. . \alon. 



F. Stigmas erect, free or connatcinto 

 a cone; sepals long and straight. 

 o. The stigmjis bilamellate; la- 



meUa erect 33. llespens. 



oo. The .stigmas bilamellate; la- 

 mellae connivent or connate 



into a cone -34. Malcomia. 



rr. Stigma simple, capitate, emargi- 

 nate or shortly 2-lobed: cotyle- 

 dons straight 



o. Silique Btipilatc 35. Stanleya. 



GO. Silique sessile. 



H. Sepals equal 36. Smdowskia. 



HH. Sepals unequal 37. Erysimum. 



The additional genera are also treated 

 Phyaoptychis. 



Braya, Physaria, and 



17. CAPPARIDACE.ffi. 



A. Fr. capsular, 1-Ioculed: herbs. 

 a. Torus short, often produced into a posterior 



appendage • • • 1- Cleome. 



BB. Toms long, produced into a gynophore 

 which is elongated at the middle and bears 

 the pi.ftil to which the filaments are 



united 2. Cynamlrnp- 



ILX. Fr. berry-like or drupe-like. , I*"- 



B. Lvs. rimple 3. Cappartt. 



BB. Lvs. with 3 Ifta ■*• Cralxva. 



PoUnisia is ahio to be cipccted in cultivation. 



19. CISTACE.ffi. 



A. Placenta- with many seeds: lvs. opposite at 

 least helow, Hat. 

 u. Nalves ."i, rarely 3; embryo eircinate or 

 spiral; lis. .solitary or cymose, rarely 



racemose ■ ■ ■ ■ 



BB. Valves 3; embryo biplicate, runcinate or 



circumflex; Hs. commonly racemose 2. Helianlhe- 



AA Placenta! with 2 .seeds; lvs. alternate, scale-like [mum. 



or awl-shaped: heath-lilce shrubs 3. Hudsoma. 



1. Cistus. 



20. VIOLACE.«. 



A. Sepals subequal, produced or spurred at base; 



1. Viola. 



lower petal spurred or saccate: herbs. 

 AA. Sepals not produced at base. 



B. Lower petal spurred or enlarged. 



c With a very large spur; seeds complanate : 



woolly climber • 2. Coryjios- 



cc. With lower petal merely gibbous: seeds [tylia. 



obovoid-subglobose: herbs 3. Solea. 



BB. Lower petal not greatly unlike the others: 



shrubs or trees 4- Hymenan- 



\lhera 



21. BIXACE.ffi. 



A. Caps. 2-valved; seeds straight and naked; 



lvs. entire ■ • 1- °"<'- 



AA. Caps. 3-valved; seeds spiral, hairy or woolly: . 



lvs. digitate or palmately lobed 2. ManmiLi- 



[anea. 



22. FLACODRTIACEjE. 



A. Sepals and petals alike, 9-15, spirally ar- 

 ranged, red; stamens 7-10; twininR shrub.. 

 AA. .Sepals 3-6, whorled; stamens usually numer- 

 ous (except in No. 4 ) ; upright trees or shrubs. 



B. Petals 4-10; sepals 3-5 - . 



BB. Petals wanting. 



c. Infi. axillary: lvs. penninerved, leathery: 



fr. a berry or drupe. 



D. Style simple, sometimes lobed at apex; 



ovary 1-celled. 



E. The sepals imbricate; style short. . ... 



EE. The sepals valvate; style elongated; 



stamens sometimes 5 or 10 



DD. Styles several; ovary irregularly 

 divided. . 



E. Fls. perfect or polygamous, in axillary 



racemes or panicles; fr. a drupe 



EE. Fls. dicecious. the pistillate solitary 



or few: fr. a berry . . 



cc. Infl. terminal: lvs. hand-nerved or i- 



nerved at base, long-stalked, deciduous. 



D. Fr. a berry; styles usually 5; sepals 



imbricate 



DD. Fr. a caps. , 



E. Styles 3, 2-parted at apex; sepals 



valvate • ■ 



EE. Styles 3^. 3-parted at apex; sepals 

 reduplicate, large 



1. Berberidop- 



[sis. 



2. Oncoba. 



3. Xylosma. 



4. Azara. 



5. Flacourtia. 



6. Aberia 



(or DoTyalis. ) 



7. Idesia. 



8. Poliothyrsh. 



9. Carrierea 



23. PITTOSPORACE.ff;. 



A. Fr. indehiscent. 



B Filaments longer than anthers; petals more 

 or less connivent from the base to beyond 



the middle • ■ ■,• 1- BiUardiera. 



BB. Filaments shorter than anthers; petals 



spreading from the base ^- aoUya. 



AA Fr. a caps, which is loculicidally dehiscent. 

 B Caps, thick-coriaceous; seeds numerous. 

 c. Seeds not winged, thick or shgntly com- 



pres.sed 3. Pitlosporum. 



cc Seeds'winged. flat, compressed, horizontal, i. Hymenos- 

 BB. Caps, thinly coriaceous: seeds 1-2 m each _^ Iporum 

 locule, compressed, not winged, vertical. 



5. Bursaria. 



24. TREMANDRACE.E. 



A. Anthers 2-celled, or 4-celled in 2 planes }■ '^f/^'"'!"'^- 



AA. Antliers4-eelledinl plane 2. 1 hlylheca. 



18. RESEDACE.£. 



In cultivation . . 



lieieda. 



25. POLYGALACEiE. 



In cultivation 



I'uli/gala. 



