266 James Small. 
Table VIII ( continued) 
Tribe and 
Sub-tribe. 
Genus and Species. 
Types of 
Irrita¬ 
bility. 
Remarks. 
Helianthie^; 
3 Melampodiinse 
333 Silphium Astericus, L. 
O 
,, integrifolium, Michx. 
A 
slight 
,, perfoliatum, L. 
O 
334 Chrysogonum virginianum, L. 
O 
336 Lindheimera texana, Gray 
A 
marked 
338 Parthenium integrifolium, L. 
O 
4 Ambrosiinae 
347 Ambrosia artemisiifolia, L. 
(OJ) 
349 Xanthium spinosum, L. 
(OJ) 
,, Strumarium, L. 
(OJ) 
6 Zinniime 
355 Zinnia elegans, Jacq. 
c 
distinct 
„ Haageana, Regel. 
(OJ) 
356 Sanvitalia procumbens, Lam. 
(J) 
357 Heliopsis laevis, Pers. 
c 
distinct 
,, padula, Wender. 
c 
slow but distinct 
,, scabra, Dun. 
c 
distinct (34) 
,, ,, var. gratissima, 
c 
distinct (35) 
Lemoin. 
,, ,, var. pitcberiana 
c 
very slow but 
distinct 
7 Verbesininae 
379 Rudbeckia ampla, Nelson 
c 
distinct 
,, amplexicaulis, Vahl. 
(J 
,, californica, Gray 
0 
,, hirta, L. 
c 
see Halsted, 18 
,, nitida, Nutt. 
c 
distinct 
,, speciosa, Wender. 
c 
marked 
,. triloba, L. 
c 
slight 
379a Echinacea angustifolia, DC. 
c 
see Halsted, 18 
,, purpurea, Moench. 
c 
distinct 
379b Lepachys pinnatifida, Rafln. 
c 
see Halsted, 18 
397 Wyethia mollis, Gray 
o 
400 Helianthus annuus, L. 
c 
slight (36) 
,, debilis, Nutt. 
(OJ) 
,, hirsutus, Rafln. 
(M) 
,, lenticularis, Dougl. 
(M) 
,, micranthus, Spreng. 
o 
,, mollis, Lam. 
A 
distinct 
,, occidentals, Ridd. 
A : C 
Adistinct.C slight 
., pumilus, Nutt. 
0 
,, rigidus, Desf. 
A : B 
A distinct, B 
slight 
,, tomentosus, Michx. 
O 
405 Helianthella quinquenervis, 
0 
Gray 
8 Coreopsidinae 
416 Guizotia abyssinica, Cass. 
C 
distinct 
423 Coreopsis Atkinsoniana, Dougl 
C 
slight 
,, Drummondi, Torr.&Gray 
(OJ) 
,, grandiflora. Nutt. 
A 
slight 
,, Grantii, Oliv. 
A ; C 
A distinct,C slight 
,, tinctoria, Nutt. 
A 
distinct 
423a Leptosyne Douglasii, DC. 
0 
,, maritima, Gray 
A 
slight 
,, Stillmannii, Gray 
O 
424 Dahlia coccinea, Cav. 
O 
,. Merckii, Lehm. 
0 
,, variabilis, Desf. 
(OJ) 
426 Thelesperma fllifolium, Gray 
0 
427 Cosmos atrosanguineus, (?) 
(J) 
428 Bidens grandiflora, Balb. 
A 
slight 
9 Galinsoginae 
435 Balduinia multiflora, Nutt. 
C 
slight but distinct 
438 Tridax trilobata, Hemsl. 
A 
slight 
10 Madiinae 
442 Madia dissitiflora.Torr. & Gray 
0 
,, sativa Molin. 
0 
445 Layiagaillardioides,Hook&Arn 
C 
very slight 
