524 
47. COMPOSITACEJE. 
broader but not dilated at tbe base. The outer ack. are closely 
embraced dimidiately by the inner scales of inv. 
This pi. differs in Mad. constantly from T. barbata (L.) 
in its scanty meagre pale glaucescent mealy far less copious 
foliage, less robust smaller size and habit, more obovate-ob- 
long or broader and shorter subpinnatifid lower 1., shorter and 
less copious br. of ped., and smaller plain- or one-col. not dark 
purplish brown-eyed fl. At Mogador up the river, I found 
the two sorts growing abundantly together, but always, even 
in the most starved or dwarfish 1-fld. imbranched spec, only 2 
in. high, perfectly distinguishable. All the Can. spec. I have 
seen, whether collected by myself or others (Webb, Bourgeau 
&c. in IIB. and HH.) appear to be the Mad. pi. and not the 
true T. barbata (L.) 
2. T. macrorhiza (Lowe). Leituga. 
Per. dark or full shining gr. perfectly smooth ; rhizome thick 
fleshy ; st. ann. gr. hard solid slender rigid straight and stiff dif- 
fusely erect simple slenderly and shortly corymboselv-branched 
at top only, thickly leafy throughout ; 1. fleshy stiff subcoria- 
ceous undivided sharply but subremotely and often obsoletely 
serrulate or serrate lanceolate, the upper subsessile and some- 
times ovate-lanceolate, the lower petiolate, all attenuate or cu- 
neate and quite entire at the base ; cyme leafy loosely or widely 
but stiffly corymbose, mostly few-fld., its branches and ped. 
slender widely divaricate and subremote mealy, with a few 
thinly scattered remote erecto-patent linear-setaceous br. up- 
wards ; fl. small (£ in. in diam.) with short and narrow li- 
gules ; inv. mealy-puberulous, with several loosely erecto-pa- 
tent linear-setaceous br. at its base ; ach. all setiferous pale 
brown, pappus about 30-setose tawny. — DC. ! vii. 87 (not Wats, 
in Ilook. J. of Bot. ii. 130 and iii. 19 or Seub. Fl. Az. 33. no. 
221). Crepis macrorhiza Sol. ! MSS. in BII. ; Buch ! 194. 
no. 227 ; Hook. ! in BM. t. 2988; Lowe Prim. 25. Schmidtia 
quercifolia Reichb. in Hoiks List in Fl. Bot. Zeit. 1830, i. 131, 
382 (name only, without fig., diagn., or descr.). Tolpis quer - 
cifolia Schultz in WB. ii. 399. — Herb. per. Mad. reg. 3, cc. 
Steep shady banks and rocks in all the principal ravines ; Rib. 
de S ta Luzia, da Metade, Rib. Frio, Serra d’Agua, Levada da 
Rocha furada above P t0 da Cruz, &c. Quite peculiar to Mad. 
and not found in either P‘° S'°, the Desertas, the Salvages, 
the Azores or the Canaries. July-Sept. — Root-stock or rhi- 
zome per. subaerial large thick fleshy, penetrating deep into 
