D293 
_HELIANTHUS linearis. 
Linear-leaved Sunflower of Mexico 
—<f-—— 
SYNGENESIA POLYGAMIA FRUSTRANEA. 
Nat. ord. Composit. Adanson fam. 2. 103. 
CORYMBIFERE. Jussieu gen.177. Div. VI. Recept. pale- 
aceum. Sem. apice dentatum aut paleaceum, Flores in plu- 
rimis radiati, in paucis flosculosi. Recept. HELENI sub- 
nudum. 
HELIANTHEE. Cassini in journ. de phys. 88 (an 1819). 191. 
HELIANTHUS. Supra vol. 6. fol. 508. : 
i 
’ _ 
HL. linearis, foliis alternis aut oppositis, sessilibus, linearibus, margine revo- 
lutis, integerrimis, uninerviis, hispido-scaberrimis, floribus subcorymbo- 
sis; involucris squarrosis, hispido-scabris. Kunth nov. gen. et spec. 3. . 
222; (sub HELIANTHO squarroso). 
Helianthus linearis. Cavan. ic. 3. 9. t. 212. Willd. sp. pl. 3. 2244; enum. 
suppl. 61. il : r 
Ffelianthus squarrosus. Kunth loc. cit. tab. 377. 
Herba subbipedalis. Caulis erectus ramosus teretiusculus piloso-hirtus, 
ramis alternis; inferis sterilibus abbreviatis foliosis, floriferis elongatis sub- 
fastigiatis. Fol. alterna aut opposita sessilia linearia acuta integerrima 
margine revoluta (1-nervia?) nervo subtis valde prominente, utrinque hispido- 
scaberrima, 14-15 lineas longa, % linee lata. Flores ex apice ramorum so- 
litarii, pedunculi erectt subcorymbost; magnitudine floris BIDENTIS cernue. 
Tnvolucrum (calyx) hemisphericum polyphyllum foliolis arctits imbricatis ' 
lineari-oblongis acutis, superné fepegenscabres, apice viridibus, reflexo- 
squarrosis, extertoribus brevioribus. Recept. planiusculum paleaceum, paleis 
oblongis acuminatis carinatis glabris scariosis, flosculo brevioribus. lose. 
disci flavi creberrimi tubulosi hermaphroditi glabri 5-dentati dentibus ovatis 
acutis enerviis: anth. demum easerte: ovarium lineare compressum glabrum 
pilosiusculum paleis 3 subulatis coronatum; stylus glaber, stig. 2-partitum 
exsertum laciniis revolutis. Achenium (semen) .lineare compressum- pilosius- 
culum coronatum paleis crebris minutis subulatis fimbriato-scabris deciduis, 
2 aut 3 multd longioribus aristeformibus, achenio pauld brevioribus: flosc. 
radii 16-20 ligulatt- neutri flavi, tubo brevi, ligula elliptico-oblonga 3-dentaté 
pland patente multinervi, glabra, 2% lineas longa. Ovarium lineare tenu- 
issimum glabrum sterile. Kunth loc. cit. 
The smallest flowered species we have seen of this 
genus, and very lately introduced by Mr. Lambert, to whom 
we are obliged for the sample for the use of our draughtsman. 
The seed came from the Botanic Garden at Madrid; but 
had been originally derived from Mexico, where the plant 
was observed by Messrs. Humboldt and Bonpland near 
Guanacuato, at the elvevation of about 1100 fathom above 
the level of the sea. 
>. sae. 
me 
