444 lvii. melastomace^ (hooker). [Atitherotoma. 



4. ANTHEROTOMA, Hook. f. ; Benth. et Hook. f. 

 Gen. Plant, i. 745. 



Calyx broadly campanulate, setose ; lobes 4-5, triangular, persistent, 

 alternating* with bristles or stellately bristly appendages. Petals 4-5, 

 obovate, tip setose. Stamens 8-10, equal ; anthers similar, oblong, 

 terete, truncate, pore large ; connective simple or produced and 

 2-tubercled at the base. Ovary adherent halfway, 4-5-celled, tip with 

 a crown of bristles ; style filiform ; stigma simple. Capsule mem- 

 branous, 4-5-valved. Seeds cochleate. — Small, erect, slender, sub- 

 simple, setose annuals. Leaves subsessile, ovate- oblong, acute, quite 

 entire or obscurely serrate. Flowers small, 3-nate or subcapitate, 

 involucrate. 



A small genus, confined to Tropical Africa and Madagascar. 



Flowers 4-merous 1. A. Naudini. 



Flowers 5-merous 2. A. Afzelii. 



1. A. Naudini, Hook. f. Stem 3-6 in., 4-angled, rarely branched. 

 Leaves in very few pairs, \-\ in., variable in breadth. Flowers sur- 

 rounded by 4 "floral leaves, shortly pedicelled, \ in. in diameter, 4- 

 merous. Anthers with the connective produced below, 2-tubercled 

 at the base. — Osbeckia antherotoma, Naud. in Ann. Sc. Nat. ser. 3, 

 xiv. 56. 



Nile Land. Tigre in Abyssinia, Schimper! (1863-8, No. 1237.) 

 Also found in Madagascar and Mayotte Island. 



2. A. Afzelii, Hook. /. Stem 6-8 in., 2-3-chotomously branched ; 

 nodes long-ciliate. Leaves J-l in. by \-\ in., shortly petioled, linear 

 or elliptic-oblong or ovate, sparsely setose on both surfaces, obscurely 

 serrate. Flowers crowded, 5-merous, subcapitate, Jin. in diameter. 

 Anthers seated on the very slender subulate tip of the filament; 

 connective obsolete below. 



Upper Guinea. Sierra Leone, Afzelius I 



In the form of the connective and 5-merous flowers, this differs remarkably from A. 

 Navdini, but the habit and all other characters are so similar that I cannot think it 

 should constitute a separate genus. From Guyonia, with which it agrees better in the 

 anthers, it differs in the far more important characters of calyx and stigma. 



5. DINOPHORA, Benth. ; Benth. et Hook. f. Gen. Plant, i. 745. 



Calyx glabrous, between turbinate and urceolate ; limb membranous, 

 sinuate-toothed. Petals 5, broadly ovate, subacute. Stamens 10, equal, 

 anthers similar, linear-subulate, pore single ; connective shortly pro- 

 duced at the base, dilMed and notched in front. Ovary adhering by 

 5 ribs to the calyx-tube, glabrous ; style filiform, narrowed at the base, 

 stigma truncate. Capsule membranous, bursting irregularly or sub- 

 valvate. Seeds minute, cochleate. — A glabrous shrub, branches herba- 

 ceous, 4-angled. Leaves petioled, oblong-ovate or lanceolate, base 



