504 lxiii. passiflore^: (masters). 



or more rows of threads scales or rings emerging from the flower-tube. 

 Stamens 5 or sometimes oo , distinct monadelphous or polyadelphous, 

 hypogynous and sessile or raised with the pistil on a stalk or gyno- 

 phore, or perigynous and springing from the tube of the flower ; fertile 

 stamens opposite to the sepals ; staminodes (when present) opposite to 

 the petals if in a single series ; anthers 2-lobed, basifixed introrse, or 

 dorsiflxed versatile, extrorse ; dehiscence longitudinal ; pollen-cells 

 globose, reticulated. Ovary free, 1 -celled, with 3 parietal placentas ; 

 ovules numerous, funiGulate, anatropal ; styles 3, consolidated or sepa- 

 rate; stigmas separate (except in Barteria), large, capitate, reniform. 

 Fruit baccate, indehiscent or capsular, loculicidally 3-valved. Seeds 

 compressed, with a hard pitted testa, surrounded by a pulpy arillus 

 derived from the expansion of the funicle. Albumen fleshy ; embryo 

 large, straight, erect ; cotyledons flat, foliaceous ; radicle directed 

 towards the hilum. — Herbs undershrubs or trees, the majority (in 

 Africa) of erect habit, elsewhere for the most part climbers. Leaves 

 alternate, stalked, pentastichous, simple or lobed, often with glandular 

 leaf-stalks. Stipules leafy or minute and deciduous. Tendrils axillary, 

 springing from the same axil as the flower-stalks. Inflorescence various 

 but essentially definite. Bracts small, scattered or rather large, folia- 

 ceous and involucrate. 



A rather large Order (as above defined), the members of which are almost exclusively 

 tropical or subtropical in their distribution, and found in both hemispheres. The majo 

 rity of the species are American, and belong to one or two genera. The African forms, 

 as will be seen, are included in several genera, but the species are not numerous. The 

 arrangement here adopted is that of the Genera Plantarum, but it is questionable 

 whether it would not be a preferable arrangement to exclude from Passiflorece proper 

 the tribes Modeccece, Achariece, and Papayacece, and to constitute them into a separate 

 Family intermediate between Passiflorece and Cucurbitaceoz. True Passiflorece seem to 

 have closer relations to the Turneracece, Samydaceoz, and even Vioiacect, than to 

 Cucurbitacece. 



Tribe 1. Fassiflorese. — Flowers hermaphrodite. Petals distinct or wanting. 

 Corona conspicuous, in one or more rows. Styles consolidated or distinct. 



* Styles distinct. 

 Stamens springing from the gynophore. 



Stamens 5 1. Paropsia. 



Stamens oo 2. Smeathmannia. 



Stamens springing from the innermost cup-like ring of the corona. 



Petals absent 3. Tryphostemma. 



Petals 5 4. Basananthe. 



** Styles consolidated. Stigma capitate. 



Stamens oo 5. Barteria. 



Stamens 5 6. Crossostemma. 



Tribe 2. Modecceae. — Flowers unisexual, rarely hermaphrodite. Petals dis- 

 tinct, usually inconspicuous. Corona inconspicuous or wanting. 



Flowers unisexual. 

 Anthers 2-celled. 



Galyx 5-cleft -7. Modecca. 



Calyx deeply 5-parted 8. Ophiocaulon. 



Anthers 1-celled 9. Atheranthera. 



Flowers hermaphrodite 10. Machadoa. 



