CENTATTREA. 
503 
under Pico Grande, Rib. do Inferno below tbe Lombo dos 
Pecegueiros, sea- cliff road between Seixal and S. Vicente, at 
the Passo d’Area, &c., everywhere sparingly. May- Aug. — A 
fine pi. of its tribe, rising when luxuriant to the height of 3 or 
4 ft., erectly panieulately branched upwards and bearing at top 
a profusion of sessile fl. -heads agglomerate in large w. masses ; 
but occasionally dwindling down from this size to a height of 
G in., with a single terminal tuft of 2 or 3 heads. L. dark full 
gr. above, hoary or white like the st. beneath, the lower 6-12 
in. long, 2 or 3 broad, with shallow regular or equal serra- 
tures and sparingly and inconspicuously spinuloso-ciliate edges. 
Heads perfectly sessile in terminal tufts 1^-2 in. in dlam., each 
|-f in. long and 4- 6 lines broad, shining pale gr. or greenish 
straw-colour, the scales strongly squarrosely reflexed, quite 
smooth, gr. with broad pale ochraceous scarious tips and mar- 
gins. Fits, pure w., shorter than the inner involucral scales, 
their limb as long as or a little shorter than the tube. Pappus 
very deciduous and copious covering the whole pi. and com- 
bining the heads into dense snowy masses ; some of its hairs 
clavate. Ach. obovate, truncate at top, compressed obsoletely 
subquadrangular, 3 millim. long, 1 1 § broad, smooth and 
shining but through the lens very obsoletely subrugulosely 
striolate or punctate longitudinally, pale brown or cinereous 
mottled or speckled with darker brown or black. 
The unarmed undivided merely ciliato-serrate 1., and always 
pure-w. fl. immediately distinguish this from the closely allied 
Canarian C. claculatus Link WB. ii. 375, t. 113 (Clai'ena ca- 
narimsis DC. vi. 633), and from C. bceoceplialus Webb WB. ii. 
373, t. 112. It is further distinguished from the former by the 
squarrosely reflexed involucral scales, and from the latter by 
the much larger heads and altogether greater size and stature. 
The specimens described by DC. 1. c. u ex horto Barclayano ” 
originated from seeds collected by me in Mad. and sent in 1828 
to the Rev. M. J. Berkeley. 
Tribe XIX. Centauriea, DC. 
35. Centatjrea L. 
§ 1. Cheirolophus Cass. Heads ovato-globose unarmed ; scales 
membranaceo-marginate entire, apical appendage un- 
armed membranous not decurrent, semiorbicular or lu- 
nate and pectinately lacerate or Jimbriately ciliato-palmate. 
Pappus setose caducous. Ililurn naked not bearded. — 
2 B 3 
