276 xxix. humiriacejE (oliver). [Aubrya. 



Upper Guinea. Gaboon river, A . le Comte, Mann ! Brass, Barter I Fernando Po, 

 Mann ! 



M. Baillon describes the inflorescence as terminal and the stamens as wholly free. 



Order XXX. MALPIGHIACE^ (by Prof. Oliver). 



Flowers hermaphrodite, regular or nearly so. Calyx 5-partite, rarely 4- 

 or 3-partite, imbricate or valvate ; each lobe or 4 or fewer 2-glandular, or 

 gland solitary or 0. Petals 5, usually unguiculate ; lamina entire or fim- 

 briate. Stamens 10; filaments free or connate below. Ovary 3-celled. 

 Styles 3 or 2, distinct, rarely connate ; ovules solitary with a ventral raphe 

 and superior micropyle. Fruit carpels (in the African genera) samaroid. — 

 Climbing or erect shrubs. Leaves usually opposite (alternate in Acrido- 

 curpus) entire or nearly so, often with a pair of petiolar glands and appressed 

 peltately-attached hairs ; with or without stipules. Flowers yellow rose or 

 white, corymbose umbellate or racemose, often panicled. 



A considerable Order, most numerous both in genera and species in tropical America. 

 Three of the following genera are peculiar to Africa. 



Fruit-carpels with a single dorsal (median) wing only. 



Leaves opposite. Calyx usually with 8-10 glands .... 1. Heteropterys. 

 Leaves usually alternate. Calyx with few glands or one only, 



rarely 0. Styles 2 2. Acktdocarpus. 



Leaves opposite or verticillate. Calyx eglandular. Styles 3 . 3. Sphedamnocarpus. 

 Fruit-carpels with lateral wings, distinct or connate above and 



below, with or without a smaller dorsal wing. 

 Calyx equally 5-partite, shorter than the petals in bud. Petals 



fimbriate below 4. TriaSPIS. 



Calyx-lobes valvate, 3-5, exceeding the petals in bud. Petals 



entire 5. Flabellaria. 



1. HETEROPTERYS, Kth. ; Benth. et Hook. f. Gen. PI. i. 256. 



Calyx 5 -parted, 4 or each of the lobes with a pair of sessile glands. 

 Petals distinctly unguiculate. Stamens 10, all antherif'erous, unequal ; fila- 

 ments slightly connate below; anthers unappendaged. Ovary 3-celled. 

 Styles 3, subulate, sharply curved and compressed at the apex ; stigma at 

 the angle (like a foot with a stigmatic heel !). Samaras 1-3 with a more 

 or less semicircular wing, usually thicker on the lower margin.— Erect or 

 climbing shrubs. Leaves opposite, entire or nearly so. Flowers racemose 

 or paniculate ; pedicels 2-bracteolate. 



A large American genus with but the following Old-World representative. 



1. H. africana, A. Juss. Monog. Malpigh. 202. A glabrous climber. 

 Leaves coriaceous, elliptic-oblong or -lanceolate, shortly acuminate cuspidate, 

 or subacute, rounded at the base or rarely subcordate, entire, glabrous, shining 

 above, glaucescent beneath, with prominent midrib and lateral veins, 4f-8 

 in. long, 2-3£ in. broad ; petiole |-| in. Flowers " yellow," in terminal or 

 axillary rusty-tomentose racemes, when terminal usually 3-furcate near the 

 base or subpaniculate. Bracts and geminate bracteoles oval or oblong, the 



