168 DR. J. D. HOOKER ON THE FLORAS OF MALAYA 
angustis, calyce parvo, petalis suberectis anguste lanceolatis enerviis basi secus costani 
incrassatis, staminibus hypogynis basi liberis non incrassatis, unico fertili elongato, 
caeteris ad squainulas subulatas reductis. 
M. Kemanga, Blume, Mus. Lugd. Bat. i. 202; Miquel, Flor. lnd. Bat. i. 634. M. fcetida, Bl. (non 
Loureiro), Bijd. 1153 ; Hassk. in Flora, vel Bot. Zeit. 1844, p. 622. excl. synon. 
Hab. Borneo septentrionali, Low (nom. vern. "Binjue"). Java v. Moluccas, fide Miguel. In cultis 
archipelagi Indici, fide Blume. 
I have called this fine species Mangifera Kemanga of Blume, on the faith of a speci- 
men so named received from Dr. Miqnel, from which it differs only in the rather longer 
petiole ; but it is extremely unlike the plate of Rumphius (i. p. 99), quoted by Dr. Miquel 
in his * Plora Indiae Batavse,' i. p. 634, as belonging to this plant. It accords well with 
Blume's description and Hasskarl's quoted above. 
There are several very distinct modifications in the insertion of stamens in Mangifera. 
In the present plant they are all free and absolutely hypogynous, the gynophore, which is 
prolonged in the closely allied genus Gluta, being here so short as to be almost obsolete. 
In 31. fcetida and Horsfieldii, on the other hand, the filaments are all connected at the 
base into a thickened fleshy ring, quite distinct from the calyx, and forming a hypogynous 
tube or cup. In M. Indica and its allies, the ovary is seated within a very thick, deeply 
5-lobed sub-perigynous disk, from the inner margin of which the stamens rise ; this disk 
may, however, be equally well considered to be the very much incrassated bases of the 
filaments, which are connate at their insertion. In all these the flower is much shorter 
than in 31. fcetida and 31. Kemanga, the petals more spreading from the base, and furnished 
with several thickened veins. 
A third modification is presented by a small-flowered and leaved Malacca species (M. 
Grifflthii *), in which the disk is hypogynous, very large, oblique, unequally lobed, and 
bearing one short perfect stamen within its mouth, and no imperfect ones. 
Tab. XXIII. fig. 1. unexpanded, 2. expanded flower; 3. petal; 4. stamen, staminodia, and pistil; 5. 
magnified 
Nov. Gen. Pentaspadon, H. f 
Flares hermaphroditi. Calyx parvus, 5-partitus, lobis imbricatis. Petala 5, calyce multo majora, oblonga, 
patentia, valde imbricata. Discus annularis, suberectus, 10-lobus. Stamina 5, parva, brevia, basi disci 
extus mserta, cum staminodiis totidem apice capitellatis v. spathulatis alternantia. Ovarium disco in- 
sertum, depressum, villosum, 1-loculare, stylo brevi recurvo crasso uno latere e basi ad apicem late 
stigmatifero, ovulo solitario medio loculi appenso pendulo. Fructus ignotus.— Arbor magna. Folia 
alterna, exstipulata, impari-pinnat a, foliolis oppositis, S-4-jugis, petiolulatis, integerrimis, glaberrimis, 
oblongis, acuminatis. Paniculae axillares, pedunculate, ramosa, ramulis patentibus, ultimis pedicel- 
Usque glaberrimis. 
1. Pentaspadojj Motleyi, H. f. 
Hab. Borneo australi, prov. Banjarmassing, invenit beat. Motley. 
M. Griffith 
nalibus 
... * * " *""»"> pctana urevious, nervis '1-6 basahbus m 
eequahter lobatc, stamine I brevi intra xnarginem disci inserto. Hab. Malacca, Griffith 
termi- 
no in- 
