﻿322 



scEOPHULAKiACE^ (Hiei'n). 



[Polycarena. 



DiSTRiB. Species 21, oue of which extends into Tropical Africa, ihe others 

 endemic. 



P. %ntertexta, Benth. in Hook. Comp. Bot. Mag. i. 372 and in DC. Prodr. %. 

 352, is Selago decumbens, Thunh. 



Polycarena, 3134, Drege, Zivei Pfianzengeogr. Documente, 91, 212, from tlic 

 Western Region, Little Namaqualand, between Silverfontein, Kooper Berg 

 and Kaus, 2000-3000 ft. alt., is unknown to me. 



* Flowers spicate or capitate, tV~S '"• long : 

 I Corolla-tube longer than the calyx : 



Flowers twice as long as the calyx or more, 

 J-| in, long : 



Calyx i-J in. long; corolla-tube about 



^ in. long „ 



Calyx J-J in. long ; corolla-tube i-f in. 

 long: 



Flowers i-| in, long j bract ^-^ in. 



long "... 



Flowers |-J in. long; bract ^-§ in. 



long 



Flowers less than twice as long as the calyx 

 or less than J in. long : 

 Calyx pubescent : 



Bract A-i in. long, glandnlar-pu- 



berulous ... 

 Bract J in. long, densely pubes- 

 cent 

 Calyx glabrous or nearly so : 



Flowers i-^ in. long ; bract linear, 



^-^ in. long 

 Flowers | in. long; bract oval, 

 ^1^ in. long 

 It Corolla-tube about equalling the calyx : 



Bract -X2-^ in. long ; corolla-tube yV~T 'Oo- 

 long : 

 Flowering calyx about or nearly equal- 

 ling the bract : 



Corolla- lobes |-| in. long 



Corolla-lobes -^s-h i"- long : 

 Decumbent, very leafy ... 

 Erect or ascending, moderately 

 leafy : 



Filaments dusky ; corolla 

 at first blue, afterwards 

 rosy 

 Filaments pallid ; 

 yellow or white : 



Flower-spikes dense : 

 Calyx i-J in. long, 

 viscid- or glandular- 

 pilose : 



Flowers J-i in. 



long ... " ... 



Flowers J in. 



long 



Calyx Jj—L in. long, 



subglabrous 



Flower-spikes rather 



lax ; calyx pubescent, 



-j'o in. long 



(1) capen»iB. 



(2) gilioides. 



(3) silenoides. 



(4) glaucescenB. 



(5) collina. 



(6) Leipoldtii. 



(7) selaginoides. 



(8) aurea, 



(9) foliosa. 



... (10) discolor, 

 corolla 



(11) pubescenfl. 



(12) Maxii. 



(13) capillaris. 



(14) filiformis. 



