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20. L. steliata. This is undoubtedly the Z. thymifolia of Mchx, 
Pursh, Smith, &c. The Mova-Cesarea, Austin. Species 16, 18, 19, 
are probably only young plants of the same. 
21. L. sessifiora, may possibly be Z. patula, nob., but no species — 
known to me has the mature flowers sessile. : 
It may not be amiss to indicate. here briefly the different forms 
that I have been able to distinguish, to help those who may be will- 
ing to assist me in my efforts to unravel what has been so perplexing 
a knot. 
I. Leaves of radical shoots elliptical, ovate, or oblong, not more 
than two or three times as long as broad. 
1. L. major, Mchx., outer sepals about equal in length to 
inner. Well described in Gray’s Manual. I suspect the L. 
divaricata, Shuttleworth, from Florida, is only a form of this 
with many stamens, 30 or more. 
2. L. thymifolia, Mchx. Distinguished by its long outer se- 
pals, andleafy panicle. 1 have received a fragment of Michaux’s 
specimen, by the kindness of Prof. Decaisne; Smith mentions 
the long outer sepals, and Pursh the leafy panicles. Pursh’s 
thymifolia, too, grew in barren, dry woods, on slate hills, not on 
the sea shore. ‘This is the L. Nova-Czesarea of the Manual, and 
is often confounded with L. major. : 
3. L. racemulosa, Mchx. Easily distinguished by its slende 
spreading pedicel, oblong flower, and broadly lanceolate stem 
leaves, Outer sepals shorter. 
4. L, thymifolia, of the Manual, but which must receive 
another name. It has been beautifully figured by Sprague in 
Gray’s genera. It is confined to the neighborhood of the sea, 
but abounds some miles from it in the Pines of New Jersey. 
Outer sepals shorter. 
5. L. patula, nob. So called from the broadly spreading 
branches and branchlets in specimens from South Carolina; but 
specimens since received from Florida are much less spreading. 
The radical shoots are an iron gray, assurgent with small oblong 
leaves. The flower is perhaps the smallest of the genus, the 
outer sepals about equal to the inner. I have been scarcely 
able to find good seed among my specimens, as the fruit seems 
unusually exposed to injury. 
Il. Leaves of radical shoots lanceolate, much longer than broad. 
6, L. tenuifolia, Mchx. This is generally low and spreading, 
the capsules are large and conspicuous. The inner sepals even 
when broad, have only a mid rib, and no side veins, all the 
other species have more or less distinctly 3 veins, or ribs, 
rising from the base. The outer sepals about equal the inner 
in length. 
7. L. minor, Lam., so called, but apparently without good 
reason. In the Manual is described the form found in the 
vicinity of New York and in New Jersey. On the uplands of 
_ Pennsylvania, New York and New England, and in Canada a 
form prevails with shorter more upright branches, and larger 
more clustered flowers, and more globular capsules, in Northern 
