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330 



parvis, cincta* Fructus pro plantae magnitucline maximus, 

 compresso-membranaceus. 



It is remarkable that this singular plant, which often covers 

 the ground in patches of many feet in diameter, yet scarcely 

 rising above the surface of the soil, and which yields a resin 

 applied to the same purposes as that of BoJax Gllliesii^ should 

 not have been noticed by any author since Cavanilles described 

 and figured it, from specimens found at Port Desire on the 

 coast of Patagonia. Persoon, indeed, refers it to Midimim^ 

 under the persuasion that all the South American Selma of 

 Cavanilles belong to one and the same jrenus ; and Professor 



Q .„ Q 



De Candolle, in saying * that Cavanilles has well described 

 four species o^Mulinum^ evidently intends to include our plant 

 in that genus. But in all probability these authors had never 

 seen its fruit, which certainly comes near the old genus Sell- 

 num in the singular situation of the ridges, all of which are 

 placed upon the flattened extcirior surface of the carpel. 

 The accurate Cavanilles omitted to notice the marginal 

 ridges and the central one, and thus described each carpel 

 as having only two ridges. A representation of the fruit is 

 . given at 



Tab. LXV. Fig. 1, Plant in fruit:— wa^. size. Fig. % Fruit. 

 Fig. 3, Transverse section of the fruit. 



6. POZOA. Lagasca. 



Calyx raargo 5-dentatiis. Petala ovata, integra, linea media 

 elevata. Fructus oblongus, obtuse tetragonus, ad raphin 

 contractus, dorso insigniter canaliculate. Carpella antice 

 semi-teretes, dorso canaliculata, angulis obtusis, quinque- 

 jugata, jugis duobus lateralibus piano commissurali im- 

 positis, evittata. Semen antice convexum, postlce con- 

 cavum seu canaliculatum.— Umbella simplex. Involucrum 

 monophyllum, amplumy marline dentatum, nervosum. Scapus 

 radicalis. Folia integra, coriacea. 



1. Pozoa coriacea. (Tab. LXVI.) 



• Memoires biu- les Ombdliferes, p. 30. 



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