^ ANALYTICAL ARTIFICIAL KEY. 



Fruit capsular, l-culloil or more, several-oviilcd. 



Flowers naked, crowded in an involucrate sjiikc: pungent herb with 



entire leaves. Fii'KiiACE.t:, 89. 



Shrub with yellow axillary (lowers : capsule 4 - 5-celled : leaves 



alternate, lobed. SrEitcuLl.\CE.t:, 2L 



Low herbs with op|)osite leaves. 



Capsule 3 -5-celled : succulent. . FiCOIDK.t:, 4L 



Capsule 1 -celled ; placentie central. 



Style and slignni one : stamens alteinate witii the .sepals. 



Glaux in Primulace.b, 57. 

 Styles or stigmas 3 or more : stamens opposite the se]ials. Cakyoi'IIYM.ack*, 14. 



Herbs without green foliage. • Allotropa in EuicACE.t:, 54. 



4. Ovary and fruit inferior. 

 Fruit many-seeded. 



Capsule (5-cellcd : flowers peifect, with 3-lobed valvate calyx : per- 

 ennial herbs : leaves entire, alternate. AuisToi.ociiiACE.F,, 97. 

 Capsule 4-celled : stamens 4 : nnirsh herbs with entire opposite leaves. 



Lndwigia in Onaouackje, 39. 

 Capsule 1 -celled with 3 parietal placentre : perennial herb ; leaves 



pinnatitid. DATlsCACEiE, 42. 



Capsule (half-inferior) 1 -celled with 2 parietal placental : leaves 



cordate. SAXlFKAGACEiE, 34. 



Fruit baccate : difccious leafless parasites. IkAFFLE.siACEA;, 98. 



Fruit mostly 1 -seeded. 



Flowers perfect : fruit nut-like : peiennial herbs with alternate entire 



leiWeS. S.VNTALACE^, 99. 



Dicecious parasites on trees, with ojiposite leaves and jointed stems : 



berry with glutinous ipnl[). Lokanthacea;, 100. 



Aquatic herbs, with opposite or verticillate leaves. HALoitAuic.t;, 38. 



B. Flowei-s unisexual, at least tlie staminate in aments. Trees or shnibs, with alternate leaves. 



Monoecious : male flowers in aments ; female solitary or few : ovary inferior. 



Leaves ]iinnate, without stipules : fertile flowers ami fruit nakeil. J re; land AC e.b, 94. 

 Leaves simple," with caducous stipules. 



Anthers 2-celled : nut in a cup-like or spiny involucre. Cui'ULlFElt*, 95. 



Anther-cells separate : nut in a foliaceous or tubular involucre. Ci)UYi-ACE.t;, 9ti. 

 I'lloncecious or dicecious, lloweis all in aments : ovary superior. 

 Fruit a 1 -seeded nutlet. 



Bracts thickened :ind rigid in fruit : nut winged or angled. Betulack.'K, 91. 



Bracts scaly : fruit wax-coated or drupe-like. . MvuicACE.t;, 92. 



Fruit a many-seeded capsule : diiecious : biacts herbaceous : seeds 



comose. Salicace.k, 93. 



Subclass II. GYMNOSPERI\LE. Ovules naked upon a scale or bract or within a 

 more or less open jjeriantli. Moncccioiis or dia-'cious trees or shrubs. 



Male flowers in atnents : female subsolitary, tlie ovule witliina double 



coriaceous integument with .small terminal orifice : nearly 



naked diiecious shrubs. Gnetack.K, 101. 



Flowers di<ecious, .solitary, axillary : ovule becoming a bony seed 



within a llesliy eiivelope or cuj). Taxacea:, 102. 



Female flowers in aments becoming dry cones or berry-like : ovules 



naked at the base of a .scale. CoNlFEU.t:, 103. 



Class IL MONOCOTYLEDONOUS or ENDOGENOUS PLANTS. Woody fibres 

 of the stem scattered irregularly. Usually with the parts of the flower in threes ami 

 leaves parallel-veined. Cotyledon simple. Mostly herbaceous. 



A. Ovary inferior : jierianth conspicuous, colored : perennials. 



.\i|uatic : loaves opposite or whorUd, 1-nerveil : flowers diiecious, 



regular, axillary, solitary. Hvdkoi'MAIUDAce.k, 104. 



i'errestrial : lloweis jierfect. 



Flowers irregular : stamens and style coherent ; anthers 1 or 2 : 



leaves alternate, slieathing. OnrniOArE^, 105. 



Flowers regular : stamens 3, perigynous : leaves equitant. Ikidack.i-:, 106. 



Flowers regular : stamens tj, perigynous: leaves not eipiitaiit. Am Aitvi.i,ii>A(E.«, 107. 



