204 COMPOSITE. 
32. Bidens tetragona, DC. Prodr. v. p. 596. 
Coreopsis tetragona, Liav. et Lex. Nov. Veg. 1. p. 31. 
SoutH Mexico, around the city of Mexico. 
33. Bidens triplinervia, H. B. K. Nov..Gen. et Sp. iv. p. 231. 
Sours Mexico, near the city of Mexico and San Augustin de las Cuevas, 7000 feet 
(Humboldt & Bonpland). 
34, Bidens warszewicziana, Regel in Flora, xxxii. (1849), p. 183. 
GuatTEemaLa ( Warszewicz). 
We have seen no authentically named specimens of many of the foregoing species, 
though most of them are probably represented in Kew herbarium by unnamed specimens. 
142. CHRYSANTHELLUM. 
Chrysanthellum, Rich. in Pers. Syn. Pl. ii. p. 471; Benth. et Hook. Gen. Plant. ii. p. 389. 
Annual herbs. Besides the following there is one endemic in the Galapagos Islands. 
1. Chrysanthellum procumbens, Pers. Syn. Pl. ii. p. 471; DC. Prodr. v. 
pp. 630, 631, species 4; Deless. Ic. Sel. iv. t. 39; Reichb. Iconogr. Exot. t. 66. 
Chrysanthellum integrifolium, Steetz in Seem. Bot. Voy. ‘ Herald,’ p. 160? 
Sout Mexico, region of Orizaba (Sallé, Miller, 159).—Common nearly throughout 
Tropical America, Arrica, and Asia. Hb. Kew. 
148. GALINSOGA. 
Galinsoga, Ruiz et Pav. Prodr. Fl. Per. p. 110, t. 24; Benth. et Hook. Gen. Plant. i. p. 390. 
About five annual species, endemic in the warmer parts of America; one is now 
naturalized in many parts of the Old World. 
1. Galinsoga filiformis, Hemsley, Diag. Pl. Nov. pars altera, p. 34. (Tab. L.) 
Annua, erecta, ramosa, ramis pedunculisque glabris filiformibus, foliis radicalibus oblongis remote 
denticulatis, caulinis lanceolatis linearibusve,: capitulis parvis, receptaculo elongato, paleis 
angustissimis, floribus disci numerosissimis, pappi paleis sepissime 10 fimbriatis alternis 
truncatis alternis setaceo aristatis. 
Herba annua, erecta, pedalis ad sesquipedalis, ramosa. Caulis gracilis. Ramuli et peduncul oppositi 
vel subverticillati, glabri, filiformes, arcuati. Folia parce albido-pilosula, remote denticulata; 
radicalia rosulata, oblonga vel obovata, circiter pollicaria ; caulina pauca, minora, lanceolata vel 
linearia. Capitula parva, multiflora ; involucri bractez subbiseriate, oblong, ciliate, striatze ; 
receptaculum elongatum ; pales angustissime, floribus disci fere equilonge ; ligule bifide vel 
trifidee, tubo hirsuto ; disci flores $ minuti, numerosissimi; pappi palex szepissime 10, fimbriate, 
alterne truncate, alternz setaceo-aristate. Achenia disci angulata, hirsuta; radii glabra. 
Norta Mexico, Cerro de Pinal (Seemann, 1473). Hb. Kew. 
EXPLANATION OF TAB. L. 
Fig. 1, a ray-flower; 2, a disk-flower and palet; 3,astamen; 4, stigma of a disk-flower; 5, one of 
the awned scales of the pappus ; 6, receptacle: all enlarged. 
