Puate 2799. 
RHIGOZUM TRICHOTOMUM, Burch. 
Bienonrace®. Tribe Tecomea, 
Rhigozum trichotomum, Saag ae. i. p. 299; Drege in Linnea, 
xx. p. 195; DC. Prodr. p. 234 aynan. exclus., descr. falsa) ; 
Sprague in Thiselton- Dyer, Fi Cap. iv. 2, p. 451; non auct. alior. ; ab 
&. obovato, Burch., ramis ternatis, foliis andula atis, "alae tubuloso- 
campanulato, antheris duplo longioribus et capsula oblonga differt 
Frutex oe 3—4-pedalis, ramis ternatim cymosis, ramulis strictis, 
oblique erectis. Folia simplicia, subsessilia, fasciculata, oblongo- 
= 
ins aa pilosa; lobi se RR Ta 5 lin. eebatiols crenulati. Stam 
supra corolle basin inserta, filamentis 4 lin - longis, antheris 
potion, lobis inferne liberis parallelis 4 lin. longis. Ovariuwm 1}, lin. 
‘apsula age sks naan, circiter 4 — longa, 5 lin. lata. 
Semina desiderantur. 
Soura Arrica: Bitterfontein, 3,000—4,000 ft., Calvinia, Zeyher ; 
the northern exit of the Karree Bergen Poo rt, near Carnarvon, 
Burchell, 1572 ; near Petrusville, Philipstown, Burchell, 2680 ; near 
Hopetown, Burche ll, 2663/2; on the Orange River, Shaw. 
The genus Rhigozwm comprises at least seven species, native of 
Tropical and South Africa. Burchell founded the genus on R. tricho- 
tomum and &. obovatum (‘ Travels,’ vol. i. pp. 299, 389). Of the former 
he says merely : ‘That part of it [the track] next to the Karreebergen 
h 
abounded in bushes, three and four feet f that singular shrub 
Rhigozum trichotomum, whose stiff branches, constantly dividing and 
subdividing, i ost regular manner, int rees, present a ver 
re and curious ramification, and have obtained for it the name of 
Driedoorn—Three-thorn.’ obovatum he gives the following 
diagnosis : ‘ Frutex 6-pedalis. Ramuli alterni horizontales. Folia 
