Amentaceas.] CALIFORNIA. 159 



This species, although it sometimes bears a head of flowers, never seems to present the aggregated 

 appearance of the last one, nor of the E. latifolium, Sm., from which it is truly distinct. The long petiolated 

 leaves are seated at the apex of a short ramification ; but the greater number of them are radical. 



Ord. XLII. LAURINEiE. Juss. 



1. Tetranthera? Calif or nica ; foliis perennantibus oblongo-lanceolatis vix acutis penni- 

 nerviis reticulata- venosis glabris, pedunculis axillaribus simplicibus, floribus pluribus in vol u- 

 cratis hermaphroditis ? 



Involucrum tetraphyllum, deciduum. Perianthium hexaphyllum ; foliola subrotunda concava pellucido- 

 punctata. Stamina 12, duplici ordine disposita; 6 exteriora, antheris introrsis; interiorum tria, foliolis 

 calycinis exterioribus opposita, fertilia, antheris extrorsis ; tria, laciniis interioribus opposita, subulata, absque 

 antheris. Glandules sex, magna?, subrotundse, angulabe inter staminum interiorum exteriorumque series, 

 hisque alternantes. Anthercs 4-loculares. Germen ovatum, in stylum brevem apice subuncinatum attenua- 

 tum: stigma subcapitatum. 



The flowers are too little advanced to permit us to ascertain whether the pistillum becomes fertile, and 

 the plant consequently hermaphrodite : it however appears to us to be so. The inflorescence and involu- 

 crum are those of a Tetranthera, while the hermaphrodite flowers, and somewhat capitate stigma allies our plant 

 to Ocotea. In one specimen we have observed the remains of the calyx after the drupe has fallen away, 

 from which it appears to be cupuliform, entire, coriaceous, and persistent. The peduncle is monocarpic, or 

 bears but one fruit, and is much shorter than the leaves. 



Ord. XLIII. EUPHORBIACEiE. Juss. 



1. E. Peplus. Linn. 



The specimens differ somewhat from the European ones, by the leaves being rough, although scarcely 

 serrated on the margin, and by having a slight mucro. The glands of the involucrum are lunate and two- 

 horned, otherwise our specimens might have been referred to E. marginata, Ph. 



Ord. XLIV. URTICE.E. Juss. 

 1. Urtica f 



The imperfect state of the specimen prevents us from ascertaining whether or not this belongs to the 

 arborescent tribe. The leaves are opposite, varying from ovate, with a slightly cordate base, to oblongo- 

 lanceolate and accuminated. They are deeply serrated, slightly hairy above, with a few rigid stinging 

 bristly hairs intermixed, which are more abundant on the petioles : beneath they are provided with a short 

 white villous pubescence. Spikes of flowers crowded at the axillae of the leaves, slightly branched, pen- 

 dulous. Fruit ovate ; style none ; stigma sessile, penicillate. 



XLV. AMENTACEJE. Juss. 



1. Salix Hoffmanniana. Sm. 



The specimens, which are without the inflorescence, and consist only of the old branches with leaves, 

 agree perfectly with the above plant, but we are not aware of its being an American species, as well as 

 Europa>an. There is a gland or two at the base of the leaf, on each side of the petiole, and the base has no 

 sinus, as in S. cordata, Muhl., in Koen. Ann. of Bot. v. 2. p. 64. t 5. f. 3., to which otherwise the leaf bears 

 the strongest resemblance. 



1. Populus balsamifera. Linn. 



