124 KEY TO SUB-CLASSES, ORDERS AND GENERA. 
COROLLIFLORA, 
J. Ovary inferior ; stamens equal in number to (rarely fewer than), and 
always alternate with, the lobes of the corolla; flowers regular, or less often 
irregular ; fruit never 2 elongated follicles :— 
(i) Stamens attached to corolla, equal in number with its lobes :— 
(1) Anthers free; ovary 2 many-locular, chambers 1 many-ovuled ; 
leaves opposite ; seeds usually with copious albumen; calyx-limb toothed, lobed 
or partite :— 
(A) Leaves without stipules, or if present lateral:— LXI—CaprirouiacE”®, 
(B) Leaves with stipules, inter-or intra-petiolar, or leaf-like and 
whorled with the leaves ; flowers sometimes in heads without 
involucres:—  ... nda Gor ase .. LXII—-Rupracem, 
(2) Anthers connate, syngenesious; ovary 1 locular, 1 ovuled; seeds 
without albumen ; calyx-limb reduced to a pappus or obsolete; flowers usually 
in heads surrounded by an inyolucre ; leaves usually alternate :— LXIII—Composir#. 
(ii) Stamens free from the corolla which is often split dorsally to the base ; 
ovary 2—10-locular, chambers usually many-ovuled ; stamens 5, as many as the 
equal or unequal corolla lobes, the filaments free from the style :—- 
(1) Ovary with 2—5 (rarely 6—10) placentas or loculi, ovules many; 
juice usually milky :— 06 oe: ses 500 566 
(2) Ovary 1—2 celled, style simple with a cupshaped indusium including 
the stigmas ovules 2 (Scxvola) erect :— ... co0 ifs «© LXIVY—GoopENIACER. 
(II) Ovary superior, or if inferior (ERIcacex Styrace%, sometimes), then 
with stamens more numerous than the corolla lobes, or if inferior and with 
stamens only as many as corolla lobes, then cither (MyRsINACEZ, Mxsa) with 
stamens opposite corolla lobes, »9r (APoCYNACE®, sometimes) with stamens alter- 
nate with corolla lobes and with 2 carpels and a fruit of 2 elongated follicles :—- 
(i) Ovary 1 locular with free central placenta; stamens (except Plumbago) 
epipetalous, equal in number and opposite, to the corolla lobes :— 
(1) Ovary 1-ovuled, styles or style branches 5 :— LX VII—PLUMBAGINACER, 
(2) Ovary 2 many-ovuled, style undivided ; fruit indehiscent :— 
LXVIII—MyrsInacEz. 
(ii) Ovary 2-many-(rarely 1-) locular, placentas axial, or less often parie- 
tal, never free central :— 
(1) Stamens free from the corolla, and usually more numerous than the 
lobes :— 
(A) Flowers hermaphrodite ; ovary superior, half inferior or inferior ; 
stamens twice as many as corolla lobes; styles simple; ovules 
many in each chamber :— ... ac ae ... LXVI—ERICACEA, 
(B) Flowers dicecious; ovary superior; stamens equal to and opposite, 
or twice as many as corolla lobes, or many; styles 2--8; ovules 
always twice as many as styles, either 2 in each undivided 
loculus, or 1 in each compartment of the sub-divided loculi :— 
LXX—EBENACEA, 
(2) Stamens attached to corolla :— 
(A) Ovary 3 or more carpelled, or if 2-carpelied (SapoTace™, some- 
times), then with stamens either equal to and opposite, or more 
numerous than, corolla lobes; flower hermaphrodite; style 
simple :— 
(a) Ovary superior, ovary 1 in each chamber ; jnice milky :— 
LXIX—SAPOTACER, 
(b) Ovary inferior, or } inferior, or at least partially attached to 
the calyx tube, ovules 2 or more in each chamber :— 
LXXI—StTYRACER, 
(B) Ovary 2-carpelled, or if 3--5 carpelled (PornMontace®, and both 
CoNVOLVULACE® and VERBENACE® sometimes) then with sta- 
mens either equal to and alternate with, or fewer than, the 
corolla lobes :-— 
(a) Corolla regular, (rarely slightly oblique) ; stamens as many as, 
and alternate with, corolla lobes, or if stamens fewer than 
corolla lobes and corolla regular (OLBACEm), then stamens 
alternate with carpels :— 
(a) Leaves opposite, or if alternate (APoCYNACEA; Thevetiu, Cer- 
bera, Plumeria, and AsCLEPIADACE®, Uttleria), then plants 
. 
see ILXV—CAMPANULACEA, 
