1061 
- SIEGESBECKIA Jorullensis. 
Jorullo Siegesbeckia. 
—-—— 
' SYNGENESIA SUPERFLUA. 
dataierg) C i illerie. Cassini op. 
Phytol, 2. 206, Comrostrz, Sect. Helianthee Miller 3 p 
i ja GESBECKIA L.—Involucrum duplex; exterius pentaphyllum patens, 
nterius polyphyllum campanulatum. Receptaculum paleaceum. | Floscult. 
'sci_hermaphroditi tubalosi, radii nonnulli unilaterales ligulati femmet. 
inten tetragona. calva. Herbee glanduloso-viscose. Folia oppostta, 
ntegra, Flores terminales et alares lutei. Kunth. synops. 2. 506. 
pc Se 
8. Jorullensis ; foliis ovato-rhombeis acutis basi valdé angustatis dentatis 
hirtellis, foliolis involucri exterioribus longissimis. Kunth. synops. 2. 506, 
Annua. Caules erecti, subteretes, ramosi, undique pilis glandulosis obsitt. 
Folia ovato-rhombea, vix cordata, pilosa, in petiolo rpsis longiore decurrentia 
Superioribus sensim angustatis, demitm sessilibus. Flores terminales, sepius 
terni, pedunculis filiformibus valde glandulosis. Inyolucri foliola exteriora 
% pallide viridia, lineari-spatulata, radiantia, interioribus purpureis 3-4-plo. 
Ongiora, undique glandulosa. Flosculi radii 6-7, lutet, breves, oblong, 
tridentati, tubo arcuato piloso, limbi glabri longitudine. Ovarium purpureum, 
obtuse tetragonum, calvum. Flosculi disci pauct, Luter, infundibulares, tubo pi- 
080, limbi glabri, erecti, campanulati longitudine ; ovarium ut radi. Antheree 
mutice, appendiculd ovata pland coronate. Stylus bast leviter bulbosus. 
Stigma bifidum, laciniis ovalibus, acutis, intiis sulcatis, extits pilosis. Recep- 
‘aculum planum, paleaceum, paleis cymbiformibus obtusis, apice glandulosis, 
quam ovaria pauld longioribus. 
PU Se Spano yes swe epee ere 
An annual plant, found by Humboldt and Bonpland on 
the Mexican Volcano of Jorullo, at the height of about 
3000 feet above the level of the sea, flowering in September. 
ith us it is a hardy annual, flowering from June to 
October. - : 
Our drawing was made in 1826, from plants in, the 
garden of the Horticultural Society, at Chiswick, where 
they had been raised from seeds brought from Mexico by 
Charles Mackenzie, Esq. 
