294 MEXICO. \_Loranthaceae. 



, caulinis petiolatis apice palmatifidis spinoso-serratis, floralibus capitulo breve 



pedunculato ovali approximatis sessilibus ovato-lanceolatis inciso-spinosis parvis, involucri 

 foliolis lanceolato-subulatis integerrimis capitulo brevioribus paleis consimilibus. — Hab. 

 Talisco. 

 Caules 6-7-pollicares. Capitula lineas duas longa. 



4. E. Beecheyanum ; caule erecto striato simplici apice corymboso, foliis radicalibus 

 lineari-oblongis basi attenuatis serraturis acuminato-spinosis a basi ad apicem instructis, 

 caulinis subsessilibus basi serrato-pinnatifidis apice palmato-partitis, capitulis pedunculatis 

 ovalibus comosis, involucri foliolis 9 capituhim subaequantibus lanceolato-subulatis inte- 

 gerrimis vel saepius utrinque unidentatis, paleis integris, fructu minute papuloso". — Hab. 

 Talisco. 



Caulis vix pedalis. Capitula semipollicaria. 



1. Pastinaca sativa. Linn. 

 Probably cultivated. 



Ord. XLIV. ARALIACEvE. Juss. 



1. Hedera arbor ea ; foliis simplicibus late ovalibus basi apice rotundatis vel ovatis 

 acuminatis, floribus umbellatis, umbellis racemosis superioribusve subumbellatis longe 

 pedunculatis, pedunculis patentibus vel deflexis, stylis in unicum pentagonum conicum 

 coadunatis. — H. arborea. Sw. ? De Cand. ? Prod. 4. p. 262 ? 



Petala qulnque, libera, calycis margo quinquecrenatus. 



Of this order we find two other species in the collection, both without leaves. The one is from Talisco, 

 and has the flowers capitate, the capitula peduncled and disposed in a raceme, as in many species of Actino- 

 phyllum and Hedera, but has only two styles, as in Panax, to the known species of which it has little 

 resemblance. In the other, from Tepic, the flowers are umbellate, from fifteen to thirty in each umbel : these 

 umbels form a corymbose pannicle, the branches of which are covered with a mealy pubescence that is easily 

 rubbed off ; there are five styles, which are united into one to near the middle, the upper portion being- 

 recurved. This is perhaps Aralia pubescens. 



Ord. XLV. LORANTHACEjE. Juss. 

 1 . Loranthus calyculatus. De Cand. ? 



The structure of the flowers and bractea is the same with the plant of De Candolle, but the young branches 

 are angled : we should have supposed it to be L. Scheidianus, Schlecht. (in Linnsea, 5. p. 172), so well does 

 it generally agree with the description, but that has a corolla three inches long, while in ours it does not 

 exceed half that length. The leaves are ovate-lanceolate, falcate, and acuminated. 



In the collection there is another species of Loranthus, or perhaps of Viscum, with opposite, oval, acute, or 

 obtuse leaves, and long slender branches, but there is neither flowers nor fruit. 



