414 LV. C0MBRETACE.E (LAWSON). 



0. Ovary 1 -celled ; style simple, filiform, straight or rarely curved; 

 stigma- simple, acute, or obtuse, rarely truncate or obscurely lobed. 

 Ovules 1 or 2-6, suspended by a slender funiculus (except in Lagun- 

 cularia) from the top of the cell. Fruit coriaceous chartaceous or 

 drupaceous; putamen crustaceous or bony, angled or sulcate or 2- of 

 4-5-winged, 1-seeded. Seed pendulous. Albumen 0. Embryo smooth 

 or sulcate ; cotyledons convolute or plicate or contortuplicate, often 

 fleshy and oily ; radicle small, superior. — Trees or shrubs, often scan- 

 dent, rarely spinose. Leaves opposite or alternate, rarely verticillate, 

 simple, petiolate, entire. Stipules, 0. Flowers in spikes or racemes, 

 less often paniculate or capitate, bracteate. 



A considerable Natural Order, confined to the Tropics, but distributed in them round 

 the world. 



Suborder I. CoMBRETEiE. 



Lobes of the calyx valvate. Stamens without glands at the base, 

 inserted into the limb of the calyx ; filaments inflexed in aestivation ; 

 anthers versatile, with longitudinal dehiscence ; pollen elliptical. Ovules 

 2—12. Flowers racemose or spicate. 



* Petals 0. Limb of the calyx deciduous. 



Tube of the calyx terete, not prolonged above the ovary. Sta- 

 mens 10, exserted. Flowers generally spicate 1. Terminally. 



Tube of the calyx compressed, - not prolonged above the ovary. 



Stamens 5, exserted Flowers in dense heads, bent downwards 2. Conocarpus. 

 Tube of the calyx 2-winged at the base, considerably prolonged 

 above the ovary. Stamens 10, exserted. Flowers in dense 

 heads 3. Anogeissus. 



* Petals 5. . 



•f Limb of the calyx persistent. 



Tube of the calyx cyliudrical, attenuated above the ovary. Sta- 

 mens 10, exserted. Leaves opposite. Flowers in heads and 

 involucrate 4. Gdiera. 



Tube of the calyx elongated, attenuated above the ovary. Sta- 

 mens 5-10, exserted. Leaves alternate. Flowers racemose . 5. Lumnitzera. 



Tube of the calyx turbinate, not prolonged above the ovary. Sta- 

 mens 10, included. Leaves opposite. Flowers spicate ... 6. Laguncclaria. 

 •f-f Limb of the calyx deciduous. Stamens 10, more rarely 8. 



Tube of the calyx straight, constricted above the ovary ; limb 

 small, campanulate or tubular-campauulate. Stamens straight, 

 10, in a few 8 7. Combretdm. 



Tube of the calyx curved or gibbous, constricted above the ovary, 



limb ample, tubular-campanulate. Stamens curved .... 8. Cacoucia. 



Tube of the calyx very greatly prolonged above the ovary, slender; 

 limb small. Stamens straight. Leaves opposite. Flowers 

 racemose 9. Quisqualis. 



Suborder II. Gyrocarpe2e. 



Lobes of the calyx imbricated. Stamens with alternating staminodes 

 inserted into the base of the limb of the calyx ; filaments straight in 

 aestivation ; anthers adnate, dehiscing by valves ; pollen globose. 

 Ovule 1. Leaves alternate. Flowers cymose. 



10. Gyrocarpus. 



