65 
HOLOGRAPHY OP THE NORTH AMERICAN CUSCUTINEJE. 
II. CORRECTIONS AND ADDITIONS TO THE MONOGRAPHY OF CUSCUTINE^, 
IN YOL. XLIII. OF THIS JOURNAL. 1 
From the American Journal of Science, Yol. XLV. No. 1, July, 1843. 
A careful re-examination of this tribe during the past season, as well as the increased oppor¬ 
tunity of examining specimens from different parts of North America, have discovered some errors, 
and made some corrections and additions necessary, which I should indeed prefer to withhold for the 
present, and subject to the test of another season’s study, if it were not important to correct such errors 
as soon as possible. A fuller description of the new species, with figures, I defer to another time. 
I am now convinced, that, although many Cuscutse-prefer some plants to others, yet there is no 
constancy in this respect, but the same species often grows upon a great variety of widely different 
plants. I did wrong, therefore, to name them from the genera upon which they grew; and I should 
much prefer to see the names of 0. Cephalanthi changed into C. tenuiflora, G. Goryli into C. incurva , 
C. Saururi into C. umbrosa, Beyr. ? C. Polygonorum into (7. chlorocarpa, and Lepidaneke Composi- 
tarum into L. squarrosa , if they had not yet been published. 
I. CUSCUTA, L. 
Cuscuta Cephalanthi. —Mostly 4-parted ; frequently only 3-partecL 
Cuscuta Coryli. — Found in many places near St. Louis, on Hazel, Willow, Besmodium, Teuerium, 
Solidago, etc. The long styles observed in some dried specimens of this as well as other species, are the consequence 
of a continued vegetation in the plant-press J The variety /3. must therefore be stricken out. Flowers frequently 
S 
5^partei 
Cuscuta vulgivaga. — Certainly the most common species. The stylopodium is very remarkable in the 
living specimens which I have examined ; and the capsule is.oval, even a little pointed, less globose than in any 
other of our Cuscutse ; but I am not prepared to say that this is the case with all varieties of this very variable [74] 
species. The stamens and pistils are as long, or rather a little shorter than the corolla, but the latter are 
elongated after flowering. (Cuscuta Americana, Hooker 1) 
4. Cuscuta Saururi. — It is very probable that Cuscuta umbrosa , Beyrich, ex Hooker, is the same ; which name 
must therefore be substituted for mine, though not quite appropriate. This plant is very nearly related to the former 
species, but can always be distinguished by the more open, campanulate corolla, which in C. vulgivaga is globose 
campanulate, the thinner texture of calyx and corolla, which is destitute of the pellucid dots, and the oblong lobes of calyx 
and corolla, which are always more or less orbicular in C. vulgivaga. Large, overgrown specimens of C. vulgivaga have 
sometimes the lobes of calyx and corolla as long as the tube, but can always be recognized by the above characteristics. 
Such specimens are those from Alabama and Texas, mentioned in this Journal, Yol. xliii. p. 340. The true <7. 
Saururi I have only received from western New York, and from this neighborhood ; where it grows in abundance on 
Polygonum, Saururus, etc. in a few localities. 
I must mention here two specimens of a Cuscuta received from Mr. M. A. Curtis, collected, one in Massachusetts, 
the other in North Carolina. In their principal characters they agree with C. Satmvri , but the flowers are much smaller 
and frequently 4-parted ; the linear-oblong, obtuse lobes of calyx and corolla are rather longer than the tube; the fila¬ 
ments subulate, shorter than the limb ; ovary with a stylopodium ; styles short and thick ; capsule ? 
An examination of more complete specimens and the living plants must show whether there is a constant dif¬ 
ference between this eastern plant and the western (7. Saururi. But I may here remark, that the eastern form of (7. 
vulgivaga is also much smaller than our western form, and from Connecticut I have also received a tetramerous C. 
vulgm 
Y * 
Cuscuta verrucosa. — Under this name I have confounded two Texan species: the description is chiefly 
taken from the following species, but the figure refers to this one, which was first collected by Drummond and after¬ 
wards by Mr. Lindheimer, both times on Petalostemonmultiflorum. The description must be altered: — C. verrucosa: 
1 The characters of the new species, etc., here described, have been published in the London Journal of Botany for April, 
1843, as an appendix to the original monograph, there reproduced. See also a French translation of the first paper, by 
F. Schultz, in Archives de Flore, 1855, I., pp. 65-79. — Eds. 
Mo. Bot. Garden 
1904. 
