330 



parvis, cincta. Fructus pro plantae magnitudine 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 Bolax Gilliesii, 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 Mulinum, 

 under the persuasion that all the South American Selina of 

 Cavanilles belong to one and the same genus ; and Professor 

 De Candolle, in saying * that Cavanilles has well described 

 four species o{ Muli?ium^ 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 Seli- 

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

 placed upon the flattened exterior 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 : — nat. size. Fig. 2, Fruit. 

 Fig. 3, Transverse section of the fruit. 



6. POZOA. Lagasca. 

 Calyx margo 5-dentatus. Petala ovata, integra, linea media 

 elevata. Fructus oblongus, obtuse tetragonus, ad raphin 

 contractus, dorso insigniter canaliculato. Carpella antice 

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

 jugata, jugis duobus lateralibus piano commissurali im- 

 positis, evittata. Semen antice convexum, postice con- 

 cavum sen canaliculatum. — Umbella simplex. Involucrum 

 monoj)hyllum^ amplum^ margine dentatum, nervosum. Scapus 

 radicalis. Folia integra, coriacea. 



1. Pozoa coriacea. (Tab. LXVI.) 



* Mcinolres sur les Ombelliferes, p. 30. 



