126 KRY TO SUB-CLASSES, ORDERS AND GENERA. 
COROLLIFLOR Ai--cont. 
Erycibe, Rivea, Arggreia, Lettsomta, and then with radicle 
inferior ; seeds erect ; juice often, but not copiously, milky: 
rarely (Cuscuta) parasitic :— ... LXXIX—ConvoLvULACE®, 
(b) Corolla irregular or at least somewhat oblique, its lobes overlap- 
ping; uppermost stamen, if present smaller than the others, 
often reduced to an antherless staminode or altogether absent; 
if corolla regular with 1—2 ovules in each ovary and fruit in 
dehiscent (VERBENACEX, sometimes), then with radicle in- 
Lerior:— 
(a) Carpels 2-or more-, usually many-, ovuled, but if only 2 then the 
ovules superposed, or if ovules 2 and collateral (ACANTHACER, 
Thunbergia only), then the fruit a 2-valyed capsule opening 
elastically from the tip :—- 
(*) Ovary 2-locular, or if 1-loculary (BIGNONIACE%, sometimes), then 
the seeds large and closely packed in the substance of the 
much accrescent parietal placentas :— 
(+) Fruit opening elastically from the apex by 2 loculicidal valves ; 
seeds supported on @ retinaculum (upcurved subacute sup- 
port) : leaves opposite :—... ae .. LXXXITI—AcantTHACER. 
({t) Fruit dehiscent but not opening elastically (rarelly indehis- 
cent) :— 
(§) Seeds large transverse, usually with a broad membranous 
wing, With horizontal embryo and no albumen, radicle 
centrifugal; fruit capsular, or indehiscent and filled with 
fleshy or spongy pulp; leaves opposite or fascicled ; mostly 
corapound : — ec not Bee LXXXII—BIGNONIACER, 
(§§) Seeds small or minute, almost always albuminous; ovary 2- 
locular, placentas attached to middle of septum ; leaves simple 
mostly alternate:— ... oe .. LXXXI—ScRoPHULARIACE®, 
(8) Carpels 1-(rarely 2-) ovaled, if 2-ovuled the ovules coliateral and 
not superposed, and chambers of fruit always 1-seeded aud in- 
dehiscent :— 
(*) Leaves opposite ; radicle inferior :— 
(+) Fruit not 4-lobed, or, if 4-lobed, drupaceous ; if separating into 
nutlets the ovary entire :— ee ... LUXXXV—VERBENACER. 
(tt) Fruit separating into 4 distinct nntlets or (less often) drupes, 
rarely 4-lobed and not separating, then not drupaceons ; 
ovary always 4-lobed :— nec xe .. UXXXVI—LasratTZ. 
(**) Leaves alternate ; fruit drupaceous succulent; radicle 
superior :— at: oes ie ... UXXXIV—MYoPoRACER, 
INCOMPLETAS, 
(I) Flowers hermaphrodite, less often (sometimes in the 3 following 
orders) 1-sexual, then (LAURACE®) the perianth-lobes 2-seriate and anthers 
opening by valves upwards, or (HtaaGNace®) the perianth fleshy and 
partly adherent to the ovary and the stamens either alternate with, or twice as 
many as, its lobes, or (LORANTHACE &, Viscum) the ovule not clearly distin- 
gaishable from the carpellary tissue and the seed without a testa; perianth 
almost always present and usually single, if double (LoRANTHACE®, some- 
times) the outer whorl very small, the seed with no testa, and the stamens 
opposite the lobes of the inner perianth :— 
(i) Ovary inferior ; seeds with copious albumen :— 
(1) Ovary syncarpous, completely or partially 6-(rarely 4-5-) locular, 
ovnles many superposed either 2-seriately in each loculus, or 1-seriately on 
opposite sides of the placeata; seeds with a distinct testa ; petianth 3-lobed 
often irregular ; stamens 6;scandent:—— ... 455 ... XUIT—ARISTOLOCHIACE®, 
(2) Ovary 1-locular, ovules 1—3; seeds with no proper testa; stamens 
as many as, and opposite, the inner or only perianth lobes ; parasitic whether 
by root or epiphytic :— 
(A) Ovules 3, 2, or 1, pendalous from, or below, the tip of a free 
funicular axis ; perianth always simple, calycine or corolline ; 
mostly root parasites :—- en : we CI—SANTALACEA, 
