ADDITIONS AND CORRECTIONS. 619 



Page 441. 122. LYGODESMIA. 



2. L. spinosa, var. cladopappa, Gray ; a state with many of the stiff bristles 

 of the pappus bearing a few slender branches toward the base. 



Carson Valley, Lemmon, 1875. Specimens by other collectors from the same neighborhood do 

 not show this peculiarity of the pappus, in which, as well as in the rigidity, there is an approach 

 to Ckcetadelpha. 



Page 442. 123. LACTUCA. 



LACTUCA CANADENSIS, Linn., was collected in a grain-field in Sierra Valley, in the summer of 

 1875. Being otherwise unknown west of the Rocky Mountains, it was probably a waif or chance- 

 comer. 



Page 443. ORDER LI. LOBELIACE^S. 



Eeplace the key to the genera under the Tribe LOBELIE^E by the following. 



* Capsule short, 2-celled, 2-valved at the top. 



1. Lobelia. Corolla with the more or less elongated tube split from top to bottom on the appar- 



ently upper side. Stamens free from the corolla. 



2. Palmerella. Corolla with a long tube, which is entire at the summit ; the stamens adnate 



to its upper part. 



3. Laurentia. Corolla with a rather long entire tube ; the stamens free from it, except perhaps 



at the very base. 



* * Capsule and ovary long and linear, one-celled, opening down the sides. 



4. Downingia. Corolla with a very short and entire tube. 

 Prefix no. 5 to Nemacladus. 



1. LOBELIA, Linn. 



Calyx 5-cleft, and with a short tube. Corolla with a straight tube split down to 

 the base on one (apparently the upper) side ; the two lobes on that side erect or more 

 separated from the three more united ones ; all the petals sometimes inclined to 

 separate at the base. Anthers and all the upper part of the filaments united around 

 the style : these inserted with the corolla. Stigma 2-lobed. Capsule 2-valved at 

 the top. Seeds very numerous and small. Chiefly herbs, of wide geographical 

 distribution ; with racemose or spicate flowers, produced in summer. 



1. L. splendens, Willd. Glabrous or nearly so : simple stem 2 or 3 feet high : 

 leaves linear- lanceolate, glandular-denticulate : raceme naked, many-flowered : tube 

 of the calyx hemispherical ; its lobes slenderly linear-subulate : corolla intense red, 

 an inch long ; its lobes (in our plant) only half the length of the tube : two of the 

 anthers strongly bearded at the tip. Hort. Berol. t. 86. 



Mountains northeast of San Diego, Cleveland, Palmer. Extends through Arizona to Texas and 

 Mexico, probably only in shaded and moist or wet places. Much resembles the eastern L. cardi- 

 nalis or Cardinal-flower. Lobes of the corolla much smaller than in the cultivated and some of 

 the wild Mexican specimens. 



2. PALMERELLA, Gray. 



Calyx 5-parted down to the turbinate tube, which is wholly adnate to the ovary ; 

 the lobes slenderly linear-subulate. Corolla with its long and straight narrow-cylin- 

 drical tube, entire (at least the upper part), not at all dilated at the throat ; the short 

 lobes abruptly spreading; two smaller distinct, spatulate-linear and turned back- 



