ANALYTICAL ARTIFICIAL KEY. 



Xlll 



Slinibs or trees with ojipositc simple leaves, 



riiuiati'ly veined, not lobed. 



Palniately veined, lobed. 

 Shrubs or trees with alternate lobed leaves. 

 Shrubs or trees with opposite compound leaves. 



Stamens 4 to 8. 



Stamens 2 or rarely 3. 



2. Ovary and fruit inferior or mainly so. 

 Tendril-bearing herbs : flowers monoecious or dicecious. 

 Ai^uatic herbs : flowers dicecious or monandrous. 



Shrubs with catkin -like drooping spikes : flowers dioecious. Garrya in 

 Shrubs or herbs, not tendril-bearing nor dioecious, nor umbelliferous. 

 Stamens as many as the small or unguiculate petals and opposite 



them : calyx valvate. 

 Stamens if of the number of the petals alternate with them. 

 Styles 2 to 5, distinct or united below. 

 Fruit a few-seeded pome. 



Fruit a many-seeded (or rarely 3-5-celled 3-5-seeded) cajisule. 

 Fruit a 1 -celled many-seeded berry. Kibes in 



Style 1, undivided : stigmas 1 to 4. 



Flowers in cymes or a glomerate cluster. 

 Flowers racemose, spicate, or axillary. 

 Ovary 1 -celled : herbage scabrous. 

 Ovary 2 - 5-, mostly 4-celled. 

 Herbs : flowers in umbels : styles 2 : fruit dry. 

 Herbs or shrubs : flowers in umbels : styles 4 or 5 : fruit berry-like. 



Celastrace.*;, 26. 



SAl'INDACEiE, 29. 



Steuuuliace^, 21. 



Sapixdaoe^, 29. 

 Oleace^, 59. 



cucukbitace^, 41. 

 Halouage^, 38. 

 coiixace^, 47. 



RllAMNACE^, 27. 



Rosacea, 32. 

 Saxifragace^, 34. 

 Saxifragace^, 34. 



CORNACEiE, 47. 



LOASACE-E, 40. 

 OiNAGRACE^, 39. 



Umbellifer^, 45. 

 araliace.e, 46. 



Division II. GAMOPETAL^ : petals more or less united into one piece. 

 A. Ovary inferior, or at least largely so. 

 Stamens more numerous than the lobes of the corolla, 8 or 1 0, 



Distinct and free from it, or nearly so. 



Monadelphous on its tube. 

 Stamens as many as the lobes of the corolla (5 rarely 4), sj-ngenesious. 



Flowers in an involucrate head. 



Flowers separate, racemose or spicate. 

 Stamens as many as the corolla-lobes, or at.least 4, distinct. 



Nearly or quite free from corolla : leaves alternate : no stiiiules. 

 Stamens distinct. 



Stamens more or less united. 

 Inserted on the corolla : leaves opposite or whorled, 



With stipules, or else in whorls, quite entire. 



Without stipules, opposite. 

 Stamens only 3, fewer than the lobes of the corolla. 

 Leaves opposite : stamens distinct. 

 Leaves alternate : stamens often united. 



Ericaceae, 54. 

 Styracace^, 58. 



CoMPOSITiE, 51. 

 LOBELIACE^, 52. 



CAMPANULACEa;, 53. 



Nemacladus in Lobeliace.e, 52. 



RUBIACE.E, 49. 

 CAPRlFOLIACEiE, 48. 



Valerianace^;, 50. 

 cucurbitace.e, 41. 

 B. Ovary superior (free), or mainly so. 

 1. Stamens more numerous than the lobes of the corolla. 

 Pistil single and simple : leaves compound. Leguminos^, 31. 



Pistils several and simple : leaves simple, fleshy. Crassulace^ 3.5 



Pistil compound, with 3 styles. Fouquiera in TAMARisciNEi, 17. 



Pistil compound, with one undivided style. 



Ovary 3-10-celled : stamens distinct. Ericace.'e, 54. 



Ovary partly or at length 1 -celled : stamens monadelphous. Styracace.e, 58. 



2. Stamens as many as the divisions of the corolla and opposite them. 

 Styles 5 : ovary and fruit 1-ovuled, 1-seeded. Plumbaginace^e, 56 



Style 1 : ovary and capsule several - many-seeded. Pkimulace^, 57. 



3. Stamens as many as the lobes of the corolla and alternate with them, or fewer. 

 * No green herbage. 

 Corolla regular : stamens free : seeds very many and minute. JIoxotrope.e, 54. 



Corolla regular : stamens in its throat : fruit 10 - 20-celled. Lenxoace.b, 55. 



Corolla regular : stamens on the tube : fruit 2-celled. Cuscuta in Convolvulace^b, 66. 



Corolla irregular : stamens didynamous : cai^sule 1-celled, many-seeded. Orobaxciiace^, 69. 



