CALIFORNIA. 35 
Although Choisy unites to the J. violacea the Convolvulus canescens of Hum- 
boldt and Kunth, as a tomentose variety, yet I cannot but consider that the plant 
now described must remain distinct, although the chief differences are the 
same as those which Kunth relied upon for his C. canescens, but in a much 
greater degree. The appearance of the plant is very dissimilar to that of any 
form of J. violacea I have seen. The form of the leaves, and especially of the 
sepals, are also different from those of the common J. violacea. 
120. CuscuTa patens, sp. n., cymis paucifloris laxiusculis, calyee pentagono laxe campanulato, 
laciniis latis obtusissimis, corolla: urceolato-globose laciniis brevibus obtusis, filamentis anthera 
brevioribus, squamis ovatis fimbriatis conniventibus.—Bay of Magdalena, 
Caules filiformes, tenuissimi, implexo-ramosissimi, squamis perpaucis parvis. Cyme 3-5-flore, 
irregulares, pedicellis flore brevioribus. Flores quam in C. epilino paullo majores, 5-meri vel rarius 4-meri. 
Calyx laxe et late campanulatus, patens, ut in C. pentagono, Engelm. angustatus, tenuiter membranaceus, non 
. verrucosus, lobis latissimis tubo multo brevioribus. Corolla tenuiter membranacea, tubo subgloboso calyce 
paullo longiore, ore contracta ; lacinie tubo duplo breviores, erecto-patentes, ovate, obtuse. Anthere in 
sinubus fere sessiles; filamenta tamen in tubo corolle evidenter decurrunt usque ad squamam. Ovarium 
globosum. Styli breves, inclusi, apice capitato-stigmatosi. Capsula corolla persistente inclusa, abortu seepius 
monosperma, in speciminibus tamen maturam non vidi. 
The calyx of this dodder is like that of C. pentagona, described by Engel-_ 
mann in the London Journal of Botany, but the flowers are much larger, the 
Jobes of the corolla shorter and more obtuse, and the filaments and styles shorter. 
The specimens are large, much matted, and full of flower, but there are no 
traces of the plant on which they grew, unless it be an Jpomea (unknown 
to me), of which there are some fragments in the mass, but not enough to 
characterise it. 
HybDROLEACER. 
121. Erropictyon crassifolium, gen. nov., dense tomentoso-villosum, foliis crassis oblongis 
dentatis basi angustatis supra canescentibus subtus ramisque rufescentibus, floribus villosis, corolla 
calycem vix superante.—San Diego. 
Cuar. Gen. Calyx 5-partitus, persistens. Corolla tubulosa, limbo parvo subpatente. Si 
inclusa. Ovarium uniloculare, placentis 2 parietalibus in medio ovario bifidis inter se liberis vel vik 
coherentibus pluriovulatis. Styli 2, a basi distincti, apice capitato-stigmatosi. Capsula debiscentia 
4-partita, (incomplete dicocca, coccis bipartitis,) partitionibus oligospermis.—Frutices Californici, 
undique vel in pagina inferiore foliorum tomentosi. Folia alterna, integra, inferiora vel Connie 
dentata, basi in petiolum angustata, penninervia, venulis crebre reticulatis: eubtus prominulis. 
Cyme terminales, 2-3-chotome ramose, ramis subscorpioideis, floribus numerosis sessilibus. 
E. crassifolium.  Frutex dense foliatus, ramulis subteretibus, pube densa rufescente vestitis. Folia 2-24 
