THE TRIUMFETTAS OF AFRICA, 233 
Lepidocalyæ differs from the other three sections in the calyx, which has a 
dense covering of peltate scales resembling those of the Eælagnaceæ. 
Both Porpa and Lepidocaly« have hard, woody, several-seeded fruits : the 
fruits of Porpa (Pl. 17. Ё. 6) are covered by prickles, which are gradually 
narrowed from the base to the apex ; whereas those of Lepidocalyx (Pl. 17. 
f.1) have a covering of spindle-shaped tubercles, which are polygonal in 
section at their broadest part, where they fit closely together. 
The fruits of Lasiothriz (Pl. 17. ff. 2-3), on the other hand, are very light, 
indehiscent and usually one-seeded, and are covered with numerous plumose 
bristles ; whilst those of Lappula (Pl. 17. ff. 4-5, 7-12) are either dehiscent 
or indehiscent, and are covered with comparatively rigid prickles. 
The sections may be defined as follows :— 
I. LEPIDocALYx, nob., sect. nov. 
Calyx extus lepidotus. Stamina numerosa (25-60). Ovarium 10-loculare, 
loculis uniovulatis. Fructus globosi, lignosi, 8-10-ioculares, loculis mono- 
spermis, tuberculis fusiformibus obtecti.—Frutices vel suffrutices, erecti vel 
procumbentes, cymis ad nodos vel binis, primaria oppositifolia, altera inter 
cymam primariam et petiolum orta, vel pluribus. 
Species 2, Africæ tropicæ тео. 
II. Porpa, nob., sect. nov. | 
Calyx non lepidotus. Stamina numerosa (25-40). Ovarium 6—10-loculare, 
loculis uniovulatis. Fructus globosi, lignosi, 6-10-loculares, loculis mono- 
spermis, aculeis e basi ad apicem attenuatis obtecti.— Plante procumbentes, 
radicantes, суті ad nodos solitariis oppositifoliis—Porpa, Blume, Bijdr. 177 
(1825), genus. 
Species 2, insularum Oceani indici, Malayæ, Australiæ Polynesiæque 
incolee. 
III. LASIOTHRIX, nob., sect. nov. 
Calyx non lepidotus. Stamina sepius numerosa (20—50), rarius pauca. 
Fructus globosi, non lignosi, perleves, indehiscentes, sepius monospermi, | 
setis debilibus plumosis obtecti.—Frutices suffrutices vel herbæ, erecti vel 
procumbentes, plerumque rhizomate lignoso, cymis ad nodos solitariis opposi- 
tifoliis et interdum ramos terminantibus. {т @- [etter ` 
Species 16, quorum 13 African, 3 Australians. 
IV. LarruLa, DC., sensu ampl. 
Calyx non lepidotus. Stamina numerosa vel pauca. Fructus globosi vel 
ovoidei, non lignosi, dehiscentes vel indehiscentes, pleiospermi vel mono- 
spermi, aculeis satis rigidis (rarissime setis plumosis) obtecti.—Frutices, 
suffrutices vel herbæ, erecti, scandentes vel procumbentes, cymis ad nodos 
