270 AMERICAN MIDLAND NATURALIST 



the calyx tube and rather narrow. Leaves glaucous, the petioles 

 calyx and nodes of the stem purple glaucescent. Flowers few solitary 

 in opposite axils in 1-5 pairs only. The stems then produce 

 several flowerless nodes and branches above, the branches again 

 producing few opposite solitary on their upper ends. Stamens 

 subequal exserted about 2 mm. in short-styled plants, the styles 

 equally exserted in plants with included stamens. 



Plant readily distinguished from L. ovalifolmm by its habit 

 and woody stems, L. ovalifolium is an herb with the habit of L. 

 alatum. Its leaves are different in shape the lower obovate or even 

 suborbicular and all thin and membranous, the stems winged. 

 L. flagellar e somewhat shrubby at least below blooms with only 

 a few flowers on the stems which soon elongate and branch. L. 

 ovalijolium though at first simple later branches diffusely and 

 blooms successively and indefinitely becoming about 3 dm. high. 

 The calyx is shorter and comparatively wider. The shape and 

 texture of the leaves distinguishes it at a glance from L. parvulnm, 

 though the habit of the two is more nearly similar. 



Good examples of L. flagcllare in the U. S. Herbarium are 

 numbers 442240, S. M. Tacy's 7594 labelled L. flagellar e Shuttlew. 

 Brandentown, .Fla., July 20, 1901. Also two other specimens 

 from Florida collected in 1890 by J. H. Simpson in the Herbarium 

 of the U. S. Dept. of Agriculture; also A. P. Garber's No. 21, 

 labelled L. Hyssopifolia L. Sarasota June, 1878 (No. ^■\9TJ5 ^ilso 

 in the same herbarium). 



These two have been hitherto confounded under L. ovalijolium' 

 Engelm, a very difTerent plant from different region. Lindheimer's 

 plant No. 609 "Fl Texana exsiccata" is typical L. ovalifolium 

 as described by Gray as /,. alatum var. ovalifolium in " Plantae 

 Lindheimerianae." Another such typical specimen is A. A. Heller's 

 collected in Texas, Kerrville; 1885 U. S. Herbarium No. 214035. 

 No. 502167 U. S. Herbarium collected by Ijndheimer in 1809 

 at Commanche Spring, New Rraunfels, Tex. These two were 

 carefully examined and compared with the original descriptions 

 of publicaton and found to differ totally in material respects 

 from L. parvulum as also from L. flagellar e. 



Department of Botany, 

 Univ. of Notre Dame, Ind. 



2 Engelmann in A. Gray, Boston Jr. Nat. Hist. VI., p. 187, (1850). 



3 p. 187. Walpers Ann., 2, p. 539. 



