KEY TO SUB-CLASSES, ORDERS AND GENERA. 169 
LXXIX—CONVOLVULACE Ai—cont. 
(+ +) Capsule with circumscissile dehiscence ; ovary 2-locular ; 
fruiting sepals considerably enlarged; bands of corolla 
without lines ; stems winged :— .. dcelviii—Operculina 
(Ipomza 2046), 
(II) Corolla tube not uniformly enlarged from base to apex, the 5 bands on 
the lobes clearly defined by 2 prominent lines; pollen spinescent :— 
(i) Fruit dehiscent, or, if indehiscent, then with thin fragile walls :— 
(1) Stamens arising directly from the corolla tube :— 
(A) Corolla more or less campanulate; calyx lobes never aristate ; 
inflorescence never scorpioid; stamens not exserted:— 
delviii—-Ipomzea-(Ipomeea 2017, 2019, 2033, 2041, 2043, 2047, 2052). 
(B) Corolla more or less hypocrateriform ; calyx lobes aristate, or, if 
obtuse, the inflorescence scorpioid ; stamens exserted :—— 
(a) Flowers rather small, pink |more commonly scarlet and crimson, 
often orange, yellow, white or variegated |, slightly irregular :— 
Aclviii—Quamoclit (Ipomza 2018, 2019). 
(b) Flowers large, white or purple, never pink, quite regular :-— 
delviii-—Calonyction (Ipomza 2015, 2016). 
(ii) Fruit indehiscent, woody, or mealy, or fleshy :— 
(1) Fruit woody ; stigmas elliptic-oblong ; corolla hypocrateriform :— 
dcly—Rivea. 
(2) Fruit mealy or fleshy ; stigmas globose ; corolla not (or very rarely) 
hy pocrateriform :-— 
(A) Sepals large, orticular, accrescent, mucilaginous, ultimately com- 
pletely enveloping the fruit :— .. delvi—Stictocardia (Argyreia 
1992). 
(B) Sepals small, ovate or narrow-oblong, leathery, ultimately dry, not 
enlarging so as to envelope fruit :— 
(a) Ovary 4-celled :— re OCLVi ss ett is gyreia other than 1992.) 
(b) Ovary 2-celled — 12 .. dcelyi—Lettsomia. 
LXXX—SOLANACKA,.— 
[Anatomical features.—In this order, in the circumference of the pith there isa 
continuous or interrupted ring of phiceum, often with bast fibres. ] 
(1) Fruit indehiscent, a berry with many compressed sukdiscoid seeds ; 
embryo curved or subspiral ; corolla lobes valvate or plaited :— 
(i) Corolla rotate or wide campanulate :— 
(1) Anthers connivent in a cone longer than the filaments, not dehiscing 
throughout their length, but by apical pores or short slits ; flewers in racemose 
or dichotomous cymes, lateral or terminal :— 
(A) Leaves alternate or subopposite in equal pairs ; flowers mostly 
rotate :— aoe .. delxvi—Solanum, 
(B) Leaves in unequal pairs : flowers small campanulate, secund :— 
dclxvii—Cy phomandra. 
(2) Anthers not connivent in a cone, nor longer than filaments, dehiscing 
throughout their length by lateral slits ; flowers Pcie or in pairs ; calyx in 
fruit small :— ark delxviii— Capsicum, 
(ii) Cor olla urceolate ; anthers not connivent in a cone ; calyx in fruit en- 
larged overtopping the berry ; flowers clustered, subsessile:— ... dclxix—Withania. 
(iii) Corolla funnel shaped ; anthers not connivent in a cone, but versatile 
opening lengthwise :— 
(1) Calyx surrounding the fleshy 4-celled fruit ; leaves somewhat fleshy, 
clustered near the ends of branches ; flowers large, yellow, solitary, terminal :— 
delxx—Solandra. 
(2) Calyx enclosing the dark coloured i—2-celled berry ; leaves alter- 
nate ; flowers medium, white, yellow, orange, red, or purple, usually fragrant, 
in corymbose or panicled cymes or fascicles, axillary and terminal :— 
delxxiii—Cestrum. 
[Botanical note.—Apart from the Brugmansia section, Hocker, Roxburgh and others 
call the Indian Daturas, ‘‘coarse rank-scented annual herbs”; they are commonly 
found as medium sized woody shrubs, and have been found 20 feet high with a stem 
of 5 inches diameter, a distinct tree. | 
