89. APOCYNACE^. 



Calyx glandular. Flowers large yellow . . .3. Thecetia. 



Calyx eglandular. Fls. white or red . . . Cerbera (p. 536). 



b. Ovules many. Fruit follicular o. Pliiineria. 



2. Leaves opposite :— 



a. Ovules 2 only in each carpel. Frt. sub-haccate . 4. Kopsia. 



b. Ovules many in each carpel. Fruit follicular: — 



i. Herbs or undershrubs. Fls. white or pink . , 6. Vinca. 

 ii. Trees or shrubs. Flowers white : — 



Calyx glandular. Follicles stout fleshy . . 7. Taberncemontana. 

 Calyx eglandular. Follicles long slender . . 8, Holarrhena. 



3. Leaves whorled : — 



Shrubs or undershrubs. Ovary sub-syncarpous. 



Frt. drupaceous 9. Saitwolfia. 



Trees or shrubs. Ovary apocarpous. Frt. of slender 



follicles 10. Ahtonia. 



II. Anthers adhering to the stigma by a point on the connec- 

 tive (usually leaving a drop of latex when torn away) , 

 anther-cells produced downwards into a subulate empty 

 spur :— 



A. Mouth of corolla with scales :— 



1. Erect trees or large shrubs. Fls. white or coloured : — 



L. whorled. Anthers included . . . . .11. Nerium. 

 L. opposite. Anthers exserted 12. Wrightia. 



2. Climbers. Fls. pale-coloured, petals caudate . , 13. Sfrophanthus. 



B. Mouth of corolla without scales. Climbers : — 



1. Anthers more or less exserted. Carpels more or less 



connate in flower : — 

 Lobes of corolla linear-oblong, valvate . . .14 Parsomia. 

 Lobes of corolla broad, contorted . . . .15. Vallaris. 



2. Anthers included : — 



a. Flowers very large, white : — 



Corolla campanulate.' Carpels connate . . .16. Beaumontia. 

 Corolla salver-shaped. Carpels not connate . . 17. Chonemorpha. 



b. Corolla mod. -sized or small : — 



i. Tips of corolla-lobes not deflected in bud : — 



Fls. m.s., sepals long 18. Aganosma. 



Fls. small, sepals minute 19. Aiiodendrov. 



ii. Corolla lobes deflexed at the tip in bud : — 



Flowers very small, follicles very slender , 20. Ichnocarpus. 



1. ALLAMANDA, L. 



Shrubs, usually climbing-, .sometimes small trees, with opposite and 

 whorled leaves, entire and shortly petioled with intra-petiolar glands. 

 Flowers very large, usually yellow, in few-fld. terminal and axillary 

 cymes. Corolla with a short tubular base, then suddenly campanu- 

 late, lobes rounded contoi-ted to the left, throat Avith a ring of ciliate 

 scales. Ovary 1-celled Avith 2 parietal placentse and many ovules. 

 Fruit globose Avith numerous stout green prickles, finally 2-valved. 



An American genus of Avhich there are noAv scA'eral species common in gardens 

 in our jtrovince. The most frequent is probably A. cathartica, L., with A^ery large 

 j'ellovv floAvers 3-4" across. It is a climber, but often seen sub-erect from being 

 pruned. 



2. CARISSA, L. 



Thorny, often 2-chotomously-branched shrubs, often scandent, with 

 opposite coriaceous leaves and milky juice. FloAvers small or m.s., 

 Avhite or pinkish, in 3-chotomous cymes. Calyx 5-partite. Corolla 

 salver-shaped, throat naked, lobes overlapping to right. Stamens at 

 top of tube, included. Disc 0. Ovary 2-celled, style filiform, stigma 



532 



