COMMELINACEÆ (AUCT. C. B. CLARKE). 115 
9. Mus. Brit.; in quo descriptiones Commelinacearum a Rob. 
Brownei manu scriptas scrutatus sum. 
In plagulis horum herbariorum (in Parisiis et Geneva autem 
parum otiose inspectis) nomina a me accepta inscripsi. 
COMMELINACEZÆ, A. Rich. 
Monocotyledones ; periantho dichlamydeo, interiore petaloideo, 
exterioris uno segmento in æstivatione omnino exteriore; staminibus 
6-5 aut 3-1; ovario libero, 3-2-loculari, ovulis angulo interno affixis ; 
embryone breviter eylindrico, in cavitate albuminis ab hilo remota 
foramini (ab embryostega depresso-conica externe tecto) juxta-posito. 
Commelinaceæ, A. Rich. Fl. Abyss. 2, p. 340; Seub. in Mart. Fl. 
Bras. 3, pt. 1, p. 232; Hassk. in Schweinf. Æthiop. p. 206, in 
Peters Mossamb. p. 522, Commel. Ind. — Commelineæ, R. Br. 
Prodr. p. 268. Commelyneæ, Kunth Enum. 4, p. 34. Commelyna- 
ceæ, Wight Ic. Pl. Ind. Or. 6, pp. 28-34 tt. 2065-2089; C. B. 
Clarke Commel. et Cyrt. Beng. tt. 1-42: Benth. Fl. Austral. 7, 
p. 81. 
Sepala 3 (in Callisia interdum 2); libera aut breviter connata (in 
Zebrina, Weldenia et Commelinæ speciebus Peruvianis paucis altius 
coalita); imbricata, unum in præfloratione omnino exterius cucullatum 
tquale, 2 interiora plus minus unilateralia vel subfalcata ; elliptica 
aut lanceolata, navicularia aut concava; herbacea, viridia aut sub- 
corolloidea colorata ; fructús tempore persistentia, rarius marcescen- 
tia Subevanida, parum mutata aut (interdum magnopere) aucta (in 
Campelia demum succulenta in pseudo-baccam coalita). Petala 3 (in 
Callisia interdum 2), libera aut (in Cyanotide, Coleotrype, Zebrina, 
Weldenia) in tubum coalita; cum sepalis alternantia, imbricata, 
"num (a sepalo exteriore remotum) in prefloratione omnino exterius 
*quale, 2 interiora plus minus unilateralia interdum multum dissi- 
milia; obovata aut lanceolata, sessilia aut unguiculata; colorata, 
“erulea purpurea aut albida rarius lutea; marcescentia, rarius deci- 
dua. Stamina 6-5, aut 3-2 (in Callisia interdum 1); omnia fertilia, 
Similia, aut siepe 3-2 infertilia ad staminodia reducta vel minora dis- 
