524 ADDENDA. 



25. Acrocephalns dissitifolius. Baker. Hiern, in Cat. Afr. PL 

 Welw. i. 850, lefers the Tiuinber on which this is founded to A. cylin- 

 draceus, Oliv. 



28. AcrocepHalus sericeus, Briquet. Add : — 



Vjir. iencrioides, Hiern in Cat. Afr, PI. NVehv. i. 857. A variety approaching 

 A. lleudeloiii. Briquet. 



Ko'wer Guinea. Angola : Pungo Andongo ; Sobato Quibonga and near 

 Quilanga, JVelwitsch, 5551. 



21). Acrocepha'lns hyptoides, Baker. The numbers on which this 

 was founded are cited by Hiern in Cat. Afr. Pi. Welw. i. 857, under 

 A. minor, Briquet. 



SHa. Orthosiphon petrensis, Hiern in Cat. Afr. PI. Welw. i. 859. 

 An erect rigid pubescent perennial herb, with stems 1-1 i ft. long. 

 Stems simple or little branched. Leaves subsessile, narrowly elliptic, 

 1-2 in. long, serrulate, obtuse or subacute, cuneate at the base. 

 Inflorescence rncemrse, terminal, simple or branched, 4-6 in. long ; 

 whorls 4-u-flowered. Calyx campanulate, \-\ in. long; upper tooth 

 broad, the others small. Corolla | in. long; lips very small. Anthers 

 and style exserted. 



JtOvr&T Guinea. Angola: district of Hullla, Wei ivifsch, 5494, 



41. Orthosiphon Welwitschii, Bolfe. Add to the varieties 

 named \ar. anyolensis, Hiern in Cat. Afr. PI. Welw. i. 859 (0. adorna- 

 titSj var. a/tgolensis, Briquet in Engl. Jahrb. xix. 17 G). 



34a. iEolanthus Goetzei, Gierke m jEnyl. Jahrb. xxviii. 467. 

 An undershrub. Leaves sessile, lanceolate, 1-2 in. long, subacute, 

 rather fleshy, entire or slightly serrate, pubescent on both surfaces. 

 Cymes capitate, congested in terminal racemes; bracts oblong, obtuse, 

 J- J in. long, violet, pilose. Calyx J in. long, campanulate, pilose. 

 Corolla not seen. 



Mozamb. Sist. German East Africa : Uliehe ; plateau near Mgololo, •15C0 ft., 

 Goetze, 762. 



11a. Plectranthus Stuhlmanni, Gu7'ke in Enyl. Jahrb. xxviii. 

 4G9. Leaves shortly petioled, broadly lanceolate, 1-3 in. long, acute, 

 narrowed to the base, crenate-serrate, quite glabrous. Inflorescence 

 racemose, lax, 2-4 in. long; whorls 6-flowered ; pedicels J in. long. 

 Calyx campanulate, pubescent ; upper tooth broadly deltoid, acuminate, 

 the others lanceolate-deltoid. 



Mozamb. ]>ist. GermaTi East Africa : Ukami ; South Uluguru Mountains at 

 Dundumi 13rouk, Stuhlmann^ 9921. 



116. Plectranthus luteus, Giirke in Enyl, Jahrb. xxviii. 4G8. 

 An undershrub. Leaves shortly petioled, lanceolate, 2-4 in. long, 

 acute, serrate, narrowed to the base, glabrous on both surfaces. 

 Whorls distant, 6-flowered ; pedicels \-^ in. long. Calyx J in. long at 



