^j- AxNALYTICAL AKTlFlClAl- KEY. 



• » ristil only one, 



+■ Sinii'le, i. c. of one caii..-l, as shown l.y the single style, sti^'ina, ami cell (the latter sometimes 

 wilh a lalse division in Astragalus). 



Anthers opening by uiilifu-.l valves or transversely. BKUUEUiOACict:, 2. 

 Anthers opening lenglliwis,' or ul tlie top. 



Flowers irregular, or leaver twice piuauto : Irmt u legumo. Li;o,UMiN«is.v:, Ji. 



Flowei-s invgular : leaves simple. Vulygalacije, U. 



Flowers regular. . 



Leaves opposite, punctate. Cneoridmm in RurACE.E, 2o. 

 Leaves alternate, not punctate, mostly'stipulute. 



Fruit a druiie or akcne. KosACK.K, 32. 



Fruit a coriaceous I'ullicle. Glossopetalon m 8ai'INDA( k.k, 29. 



■4- -1- Pistil comi)ouiul, as shown by the number of cells or i)lacentie, styles or stignia.s. 



Ovaiy 1 -celled, with (2 to 4 or rarely more) parietal placentie. 



Petals (long-clawed) and teeth of long-tubular calyx i or 5. Fuankkmaci:.*;, 13. 



Petals and sepals or lobes of the cleft calyx 5. 



Corolla irregular ; lower petal spurred. Viur.Acii.K, .11. 



Corolla regular or nearly so. 



Styles or ses-sile stigmas entire. SaxifkaijaiE/E, 34. 



Styles 3, each 2-parted: placenta; 3. 1)i:oseuace.e, 36. 



Petals 2, but persistent sepals 4 : flower irregular. Ri:sEi)Ari;/E, 9. 



Petals 4, but bract-like sepals 2 : llower irregxilar. Fu.MAUiArE.'E, (3. 



Petals 4 or ti : sepals half as many, caducous. pAi'AVKitAfK.E, 5. 



Petals and sepals each I : stamens G. Caim'AIMDAck.e, 8. 



Ovary and pod 2-celled : 2 placentie parietal : stamens tetradynaiaous. CluiciKKi;.!;, 7. 

 Ovary and capsule 1-celled, .s.^veral - many-.seeded on a central placenta, 

 Truly so, the partitions wanting or very incomplete. 



Sepals 2 : leaves often alternate. Poutui,ai-ACE^, IC. 



Sepals or calyx-lobes 5 or sometimes 4 : leaves all opposite. Cakyopiivllaceje, 14. C /, 



Here may be sought the apetalous (ilaux in Puimui.ace^, 57. 



Apparently so ; the partitions at length vanishing. 



Stipules between the i.ppusitu leaves. El,ATI^'ACK.'^;, 18. 



No stipules. LytiiiiACE-E, 37. 



Ovary and fruit 1-celled with a sin;,dc seed on a stalk from tho base. 



Shrubs : styles or stigmas 3 : fruit drupe-like. Anai'audiack.e, 30. 



Herbs ; fruit a utricle. 



Style at most 2-cl.ft : stipules scarious. Ii.lkueuuack.e, 15. 



Styles 5 : calyx scarious. Plumi!AG1Naue.e, 5t3. 



Ovary more than i-celled : seeds attached to the axis, or base, or summit. 



Flowers very irreg\dar : ovary 2-celled : cells 1-seedeil. Polygai.ACE/E, 12. 



Flowers legular or neaily so. 



Ko green foliage. Mouotropea;, &c., in Euicace*, 54. 



Foliage pellucid-punctate ; strong-scented shrubs. Rutacea:, 25. 



Foliage not pellucid-punctate. 



Anthers oficning by terminal pores or chinks at the end. Eukjacea;, 54. 



Anthers opening lengthwise. 



Stamens as many as the petals and opposite them, i. e. alter- 

 nate with the calyx-lobes, 

 Tlie-sc valvate in the bu.l. Ricamnace^, 27. 



These small or obsolete : petals valvnti;. Viiacea;, 28. 



Stamens when just as many as petals alternate with them. 



Strong-scented shrub : leaves opposite, 2-foliolate. Zyoophyi.LAck.e, 23. 



Strong-scented h(!rbs : leaves lobed or compound. OeI'.aNIACE^, 24. 



Herbs, not strong-scented. 

 Ovules 1 to 4 in each cell. 



Leaves all simple ami entire. Lina(;e.e, 22. 



Leaves all i.pposile, compound, ami leallels entire. ZV(i<)l'UYI,l,ArK;«, 23. 



Leaves alternate or opposite, the latter with ilivisions 



or leatlets not entire. Gekaniace*, 24. 



Ovules numerous. 



Stamens on the calyx : style 1. Lythkacea;, 37. 



Stamens on the calyx : styles 2 or 3. Saxifkagace.e, 34. 



Stamens on the receptacle : leaves opposite, simple. 



Cells of the ovary as many as the sepals, 2 or 5. Ei.atinacE;E, 18. 



Cells fewer than the sepals, 3. Mollugo in Ficoiui':^:, 44. 



