A SCLEPIADA CE^. 



43 



usually projecting outwards, the adjacent wings of each pair of 

 anthers nearly meeting and forming between them narrow fissures 

 leading to the Btigmatic cavities ; connectives of the anthers often 

 produced into terminal membranous and sometimes connate appen- 

 dages. Pollen forming 1 or 2 granular or waxy masses in each 

 cell, the polliuia of the adjoining cells of two contiguous anthers 

 united in pairs or fours either directly or by appendages (caudicles) 

 to glands (corpuscles) which lie on the dilated portion of the style. 

 Ovary of two distinct superior carpels, inclosed within the staminal 

 column ; styles 2, short, united above into a 5-angled disk (style 

 apex included between the anthers or produced beyond them into 

 a long or short simple or 2-fid column ; ovules many, rarely few, 

 imbricate in several series on the projecting placenta. Seeds com- 

 pressed, usually flat and often margined, crowned with a long 

 dense brush of hairs (coma], albumen thin or 0. Species exceeding 

 1,800, widely spread throughout the tropical and subtropical regions 

 of the world, a few in temperate regions. 



Filaments free or slightly connate at the base, 

 pollen-masses granular. 



Corolla-lobes valvate 1. HEMIDESMUS. 



Corolla-lobes overlapping to the right. 



Corona-lobes free, fleshy, not aristate . 2. CRYPTOLEPIS. 

 Corona-lobes connate in a ring, ariatate . 3. PERIPLOCA. 

 Filaments combined into a tube, pollen-masses 

 waxy. 



Antrers with a membranous appendage. 

 Pollen-masses pendulous. 

 Stems erect ..... 



Corolla-lobes valvate, corona- pro- 

 cesses laterally compressed ; fol- 

 licles shorb, turgid. Flowers large . 4. CALOTBOPIS. 

 Corolla-lobes overlapping to the right, 

 corona processes short and fleshy. 

 Flowers medium-sized. . . .5. PENTABOTHRA. 

 Stems twining. 



Corona staminal, single. 

 Corolla subrotate, reddish-purple 

 inside, corona a fleshy truncate 



ring. Flowers large, fragrant. . 6. HOLOSTEMMA. 

 Corolla, divided | way down, white 

 or pink with purple veins, corona 

 5-lobed. Flowers lar^e . 7. OXTSTELMA. 

 Corolla lobed nearly to the base, 

 corona of 5 scales. Flowers small, 

 greenish 8. PENTATROPIS. 



