512 COMPOSITE ( Harv.) [Oldenburgia. 
GIBBARIA, Cass. 
Heads radiate ; rays female, uniseriate ; disc-f. male, 5-toothed. Jnv. equalling 
disc, hemispherical, scales in few rows, imbricated, spine-tipped. Recept. flat, nude. 
Achenes of ray short, thick, dorsally gibbous ; of disc sterile, compressed, striate, 
with a coroniform, dimidiate, very short, irregularly torn pappus. DC. Prodr. 7, 
257. 
G. bicolor (Cass.) A branching plant. Leaves alternate, long, semiterete, acute, 
1-nerved, half-clasping, glabrous. Heads terminal, solitary; disc yellow ; rays 
white above, yellow beneath. 
Sub-tribe 2, Mutistacem. (Gen. 141-145). 
CXLI OLDENBURGIA, Less. 
Heads many-fi., radiate, homogamous (all the fl. perfect) ; corolla of 
disc-fl. nearly regular, very deeply 5-fid ; of the ray bilabiate, the outer 
lip long, strapshaped ; the inner minute, bifid. Jnz. sc. unarmed, linear, 
acuminate, several nerved, the inner herbaceous. Recept. nude. Cor. 
glabrous. Filaments smooth. <Anthers tailed. Style glabrous, its 
branches very short, obtuse. Achenes turbinate, beakless. Pappus of 
many shortly plumose, equal bristles. DO. Prodr. 7, p. 12. 
South African shrubs or suffruticose, dwarf plants. Rootstock very woolly. 
Leaves rosulate, sessile, coriaceous, one-nerved, obtuse, glabrous above, very hairy 
beneath. Heads solitary, of large size. Cor. purplish. Name in honour of Olden- 
burg, acompanion of Thunberg in his S, African herborizations : he died afterwards 
in Madagascar of fever. 
Inv. sc. standing loosely in many rows, very much acuminate : 
Nearly stemless, densely tufted ; heads immersed among the 
narrow fl: leaves =". ey ns sackaneas ... (1) paradoxa, 
Shrubby, branching ; heads on terminal un sub- 
cobyiabeate eee os (2) Arbuscula. 
Inv. sc. closely imbricated, connivent,scarcely acuminate ; pedunc. 
ee ee ee ee Se =. (3) Paplorim. 
1. 0. paradoxa (Less. Linn. v. p. 252, f. 69-75); nearly stemless, 
from a thick woody rootstock; leaves, on barren shoots, tufted at the 
end of the rudimentary branch, obovate-oblong, cuneate at base, with 
subrevolute margins, glabrous and impress-nerved above, tomentose 
and strongly ribbed and penninerved beneath; fertile stems simple or 
multifid, very short, closely leafy, their leaves tongue-shaped, narrow, 
with revolute margins, tapering into a very densely shaggy petiole ; 
heads sessile among the leaves; inv. sc. very shaggy at base, very much 
acuminate and subglabrous at apex ; achenes silky-villous, short. DC. 
be. 13. 
Has. Cape, Mundt and Maire. Eastern parts, Burchell. Swellendam, E. § Z./ 
R. Zondereinde, Zey.! 3073. Top of Georgetown Mt., forming dense tufts, Dr. 
Alexander Prior! (Herb. D., Sd., Hk.) 
Stems 1-14 in. long. The leaves on barren stems are very similar in size and 
character to those of O. Arbuscula ; those on flowering stems (which alone have been 
described by Lessing and De Candolle) are 2-24 in. long, 3-5 lines wide, nearly 
veinless, glabrous above, woolly beneath. 
2.0, Arbuscula (DC.! 1. c.) ; stem elongate, shrubby or arborescent, 
branched, very shaggy; leaves crowded at the ends of the branches, 
obovate-oblong, cuneate at base, convex above, with subrevolute mar- 
