tomentosis, spicis paniculatis longissimis revolutis, pedunculis calycibusque dense tomentoso
hirsutis.—Don, Gen. Syst. Bot. a n d Gard. v. 4. p . *251.
Wigandia scorpioides seems to have been only described by Choisy from an unpublished drawing of Sesse
and Moçino, but there can be no question of this being the same plant. Our specimens are 2 feet long, and
yet do not exhibit the lower leaves. The stem is thicker than a goose quill, obtusely angular, downy, not in
the least hairy. Leaves on our specimens alternate, 3-5 inches long, nearly elliptical, on a rather short
petiole, acute, irregularly toothed, of a thiekish texture, above minutely reticulated with veins, wrinkled and
slightly downy, beneath thickly clothed with white tomentum. The upper branches form a large panicle of
secund large spikes, 4-6 inches long, revolute at their apices. Calyx large, cut to the middle in 5 rather
long, subulate (in,the dry state curved) segments, covered with dense hairy tomentum. Corolla half an inch
or more across ; in its structure, and that of the stamens and pistil, exhibiting the same appearances as W.
urens. Branches of the styles, after the falling away of the corolla, much protruded beyond the segments of
the calyx.
We may here observe that Choisy has described the Mexican Wigandia urens of Kunth and us (supra, p-
303), as a distinct species, with the following name and character :
W . K u n th ii; hispidissima, foliis ovato-cordatis duplicato-crenatis utrinque pilosis obtusis, paniculis terminalibus
ramosis, sepalis lineari-lanceolatis acutiusculis canescenti-tomentosis, capsulis pilis longis vestitis.
Choisy, in Mem. Phys. Gen. 6. p . 1 1 6 .
The original Wigandia urens is a native of Peru, whence we possess fine specimens from Mr Cuming,
Mr Mathews, and Mr M‘Lcan.
O r d . X X X IV . C O N V O L V U L A C EÆ . Juss.
1. Qu amo clit Choisy.— Ipomæa Quamoclit. L .—Bot. Mag. p . 244.
H a b . Between San Bias and Tepic.
1. Convolvulus (P h a rb itis , C h o isf N il.— Convolvulus Nil. L .— Ipomæa cærulea.
Ker, Bot. Beg. t. 276.
H ab. R e a l e jo .— T h i s p la n t v a r ie s m u c h in th e fo lia g e , th e le a v e s b e in g som e tim e s e n tir e , s om e tim e s 5 - , a n d
in o u r sp e c im e n s , m o r e g e n e r a l ly 3 - lo b e d .
There are several other Convolvulacées in this collection, but they are too difficult to be determined with
our present materials, nor have we space for the descriptions.
O r d . X X X V . P O L EM O N IA C EÆ . Juss.
1. Hoitzia cærulea. Cav. Ic. 4. p . 44. t. 3 66. C an tu a cærulea. L am .
H a b . Mexico. Bates et Grisebach, in Herb, nostr.—This species is well distinguished by the narrow,
harsh, rigid, nearly solitary flowers at the apices of the short branches, the obovate, diaphanous, white bracteas,
with deep purple, reticulated veins. I am not aware that this is found on the Pacific side of S. America.
Our specimens from Mr Bates and Dr Grisebach are we believe from near the city of Mexico.
2. H. glandulosa. Cav.— Hook, et A rn. supra, p . 303.
H a b . Between San Bias and Tepic.—Here the bracteas are linear-lanceolate, mucronate, close pressed, 1-
iierved, opaque, glanduloso-pubescent on the back; and the usually solitary (rarely didymous) flowers are
arranged alternately, but pretty close on the short branches so as to form a spike. It is an erect growing
species. ,
3. R . elata (n. sp .) ; caule ramisque glanduloso-pilosis, foliis lato-lanceolatis acutis
æqualiter mucronato-serratis glabris utrinque scabris, floribus glomeratis in r-amulis
brevibus, bracteis lineari-lanceolatis m ucronatis subintegerrimis opacis uninerviis g lan d u loso
pilosis.
H ab. Near the city of Mexico. Bates, in Herb, nosir.—Allied to the preceding, but apparently a miicii
taller plant (our specimen, only the portion of a plant, is 1 ^ foot long), and the flowers are constantly glomerated
at the apices of short branches which are about 1 an inch long.
4. H. Cervantesii. H .B .K . Nov. Gen. Arn. 3. p . 164.
H a b . Realejo.—At p. 303 of this work we had expressed a doubt if H. Cervantesii was really distinct
from H. glandulosa. If the present plant be the real H. Cervantesii, it is undoubtedly distinct. It is a procumbent,
small, straggling, somewhat dichotomous species ; the younger branches only clothed with short,
glandular down ; flowers glomerated, terminal, but more generally sessile in the axil of the cauline leaves.
Bracteas opaque, slightly downy, scarcely glandular, lanceoiate, but rather broader upward, mucronate and
mucronato-serrate, 1-nerved, obscurely reticulated. The leaves are ovate, broader than Humboldt describes
them to be.
5. H . lupxdina (n. sp .); elata g laberrima, foliis (nunc oppositis) ovatis breve petiolatis
duplicato-cartilagineo-serratis aristatis scabriusculis, ramulis gracilibus simplicibus v.
divisis, bracteatis bracteis profunde cordatis nitidis viridibus reticulatis longe ciliato-den-
tatis inferioribus remotis supremis dense imbricatis involucriformibus floriferis.
H ab. Realejo and Acapulco.—A most distinct and well marked species to 2 feet high, glabrous in
every part. The bracteas, f of an inch long and as much broad, are extremely beautiful, and extend for the
whole length of the smaller branches, the upper imbricated ones only being floriferous.
6. H . amplectens (n. sp .) ; glaberrima, ramis eiongatis superne scabriusculis, foliis oppositis
sessilibus ovato-acuminatis membranaceis reticulatis duplicato-mucronato-serratis
scabriusculis superne, in bracteas alternas rigidas nitidas ciliato-dentatas virides reti-
culatas profundissime cordatas amplexantes supremas imbrícalas floríferas transeuntibus,
calycibus longe aristatis.
H ab , Between San Bias and Tepic.—Of this very remarkable piant our specimens are from 6 inches to a
foot in length. Leaves 2 inches long, in remote, constantly opposite pairs ; within from 4 to 6 inches of the
apex of the branch they suddenly become bright green, cordlform, alternate bracteoe, an inch long, the upper
crowded and broader, all of them with so deep and narrow a sinus at the base, that the two lobes embrace
the stem whieh thus appears perfoliate.