KEY TO THE NATURAL ORDERS. 
Stamens 4-6, perigynous. Ovary 2-celled, o»-seeded. Calyx 
cylindric. Herbs. . eo. XXX. Lythrariee. 
Stamens 6, perigynous. Dni ree) RER, ans 
turbinate. Shrubs . . . . XXXVII. Escalloniee. 
Stamens 4-5, perigynous, E petals Ora 3-celled, 
3-seeded. Calyx flat. Shrubs . . . XXIV. Rhamnea (Discaria). 
II. MoNoPETALOUS. 
A. Ovary inferior. 
T Flowers (minute) in an involucrate head. 
Stigmas 2, naked E E E . XLII. Composite. 
Stigma 1, ina Sele Bi. aa « s. Seit A 
tt Flowers not in an involucrate head. 
* Leaves alternate. 
Anthers 5, 2-celled, combined. Stigma not in a cup . . . .XLVI. Lobeliacee. 
Anthers 2, 2-celled, combined. Stigma not ina cup. . . . . XLV. Stylidee. 
Anthers 5, 2-celled, free, alternate with corolla-lobes. Stigma not 
in a cup . 5. « XLVII Campanulacez. 
Anthers 5, 2- celled, be a sola lobes. $5; 3 0. e Mio: Peine: 
Anthers 5, 2-celled, free or combined. Stigma in cup . . . . XLIV. Goodeniacez. 
Anthers 3-5, free, 1-celled. Filaments combined . . . . XXXII Cucurbitacee. 
** Leaves opposite or whorled. 
Simple, stipulate . . o, AL. AW. 
Ben d Lue XL, Caprifoiaces. 
B. Ovary superior. Flowers regular. : 
+ Carpels free, or combined into a deeply lobed ovary. 
* Stamens free from corolla. 
Hypogynous. Leaves opposite. . . . . . ... ... . .KAlll, Rufgoee, 
Perigynous. Leavesalemate. . . , . . . Gran -u « AXV..Stachhonsiae, 
** Stamens attached to corolla. 
Unequal. . er nn « « « « LVI. Labiate (Lycopus). 
Equal. tides 2-celled, opening = slits won A ooa o. alas BORO 
Equal. Anthers 2-celled, opening by pores . . . . . . XLVII. Fricee. 
Equal. . Anthers 1-celled . ci o 7x AML, Mygeridas, 
TT Carpels combined. Ovary not ai ie, 
* Stamens hypogynous. 
Anhes bead | Fino. - . = a ne due ben. 
Anthers 2-celled . . $ OTE di MAN ALL, wae (Prionoles). 
** Stamens inserted on akea | 
a. Corolla-lobes plaited in buds. Leaves alternate. 
Capsule few-seeded . EE LIV. Convolvulacee. 
Berry many-seeded. Kata with pus, . 522) Ce .LVIIL, Smer. 
Capsule many-seeded. Anthers with slits . . . . . . LU. Gentianee. 
B. Corolla-lobes twisted or erumpled in bud. Leaves 5 opposite 
Small trees or climbing shrubs . . . - + . LI Apocynee. 
Erect or-decambent a u os s MIL Godiionen. 
£2 
