5^25 



HELIANTHUS linearis. 



lAnear 'leaved Sunflower of Mexico 



SYNCSENESIA POLYGAMIA FRVSTRASE^i. 



'Nat, ord. Composite. Adansonfam. 2- 103, 



CoRYMBiFERJE. Jussieu gen. ^^^. Die. VI. Recept pale- 

 at^eum. Sem, apice deatatum aut paleaceum* Flores in plu- 

 rimis radiati, in paucis ilosculosi. Recept. Helbnii sub- 

 nudum. 

 HfiLiANTHB^. Casiini tnjimm.de phvi. 88 (an 1819). l&l. 

 HELIANTHUS. Supra vol. 6. foL 50&. 



H. linearis, fotiis altemis aut oppositis^ sessilibus, linearibus, mai^ine revo- 



lutis, int^;eniniis, uDinerrits, hif<pido-scaberrimis, floribus subcotymbo- 



sis; inTolucris squarrosis^ hispido-scabris. Kuntknav. gen. et spec, 3. 



222; fsub Heuantho squarroso). 



Helianthus linearis. Cavan. ic, 3. 9. t. 212. Willd. sp. pi. 3, 2244; enum, 



suppL 61. 

 Helianthus squarrosus. Kunth loc. cit. tab. 377. 



Herba s^bipedalis. Caalis erectus ramtmi* teretiusculus piloto-kirtuSf 

 ramis altemis ; inferis steriliims abbreviatis JoliosiSf ^oriferis eUmgatis wJb' 

 Jastigiatis. Fol. altema aut apposita sessilia Hnearia acuta integerrima 

 margine revoluta (l-nervia?) nervo sixbt^ vabU promineniCt ntrinque hispido' 

 scaberrima, 14-15 Uneas Imga, ^ Unem lata, flores ex apice ramorum jo- 

 Utariiy pedvnculi erecH subwrgmboH ; magnitudinefiaris BiDENTis ceinuie. 

 Involucrum (calyx) hemisphtBricum polgphgUam jolioHs arctOiu imbrieatis 

 lineari-obhngis acutis, supem^ hi^ndo-scabris, apice viridibuSt reflexo- 

 Mquarrosis^ exterionbtis breviaribus. Recept. planiwculum paleaceum, p^kii 

 obbmgis acuminata carinatis glabris scariasis, flweuto bnm&ribus, Flosc. 

 disci >^m creberrimi tubulosi hermaphroditi glabri &*dentati dent^us cvatts 

 acutis enerviis: anth. dem^m exserta: ovarium lineare campresmm glahruin 

 pilosiusculum pakis 3 subulatis caranatum; stylus glaber, stig. Srpartitum 

 exsertum laciniis re^olutis. Acheuium (semen) lineare camprcssum pHasim- 

 culum mronatum pakis cruris minutis subulatis ^fimbriaUhscabris detnduis, 

 2 aut 3 mnltb hmgityribus arist^sformibus, aekento paulb breviarUntsi flosc. 

 fadii 16-20 ligulati neutrijlavi, tuba brem, Hguld elUpHco^lougi S-dentatd 

 planA patente muhinervi, glabrd, 2^ iineas lfm^&. Ovarium lineare tcnu- 

 is$imnm glabmm sterile. KunUi loc, cit. 



The smallest flowered species we have seen af 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. 



