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LOASA* ambrdsisefdlia. 



Ambrosia-lectbed Loasa, 



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POLYADELPHIA POLYANDRIA, or POLYANDRIA MONOGYNIA 



Nat 



Botany, p. 58.) 



LOASA. 



Loase;e Jussieu. — (^Introduction to the natural system of 



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L. ambrosicefolia ; foliis alternis petiolatis bipinnatifidis, lobis lobulisque 

 subobtusis, pedicellis extra-axillaribus, lobis calycis lanceolato-liaearibus 

 acutis petalis brevioribus. — Decand. prodr. 3. 342, 

 L. ambrosisefolia. Juss. in ann. mus. 5, /. 4,foL 1. / 

 L. hispida. Graham in Jami^son^s journal, Oct. 1830,;). 369. 



Annua. Caulis erectus, 7ngidus, teres, pallide viridis, ramosus, undique 

 pilis rigidis urentibus, subdejlexis, fuscis vestitus. Folia altema, hipinna- 

 tijida, hispida, lobis planis, valde incequalibuSj obtusis, nunc dentatis. Pedi- 

 celli hispidij extra-axillares, vershs fastigium caulis vrovenientes ; unciajn et 

 dimidiam longi. Flores nutantes, fiavi, dianietro jere 2'Unciali. Ovarium 

 uniloculare, hispidissimum, turbinatum. Sepala reflexa, ovata, obtusa, 



pubescentia. 



?fl. 



sepalis multilm longiora. 



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cordatcByJauceplance; intra hos adsuni squamulce decern subulatce, pubescent es, 

 per paria squamis opposita, stamina sterilya simulantes. Stamina in- 

 dejinita, incequalia, intrd cavitatespeialorum recondita. Stylus teres, pilosu^; 



a. Semina 



stigmata simplicia ; 



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parva, oblonga, brunnea^ minuti undique tuberqulata, testd molli, nndeo 

 oblongo, embryone in axi albuminis carnosi, ariilo nullo. 



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For the introduction of this very 1)eautiful new annual 

 we are indebted to Mr. Crucksftanks, who gathered it near 

 Lima. From seeds presented by this gentleman to the 

 Horticultural Society the plant was raised from which our 

 figure was taken. It wsis placed on the south side of a 

 yew hedge in the Garden of the Society, where it grew 

 vigorously, attaining a height of about 2^ feet, flowering 



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A word of unknown derivation. 



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