124 ON SOUTH-AMERICAN APOCYNACEZ. 
R. Cubensis, Müll. l. c. p. 435 (Linden 1716) . . = Angadenia Havanensis. 
R. Lindeniana, Müll. l. c. p. 437 (Linden 1700- 
O io uerger adus sl e Angadenia Lindeniana. 
R. Wrightiana, Müll. 1. c. p. 438 (C. Wright 399) — 4ngadenia Valenzuelana. 
R. Berterii, Müll. l. c. p. 446; Linn. xxvi. 665; 
A. DC. l. c. p. 447 . . . . . . . . . Angadenia Berterü. 
LAUBERTIA. 
A genus established by Prof. De Candolle in 1844, upon a single Peruvian species. This 
is a climbing plant, with terete branches, opposite or ternately verticillate leaves, 
ovate-elliptic, acuminate, obtuse at the base, obliquely penninerved, 4 in. long, 14 in. 
broad, on petioles 5 lines long. It has a terminal inflorescence upon a long peduncle, 
bearing many alternate flowers on pedicels 4 in. long; 5 sepals, without inner scales; 
tube of corolla 9 lines long, cylindrical for the length of 6 lines, swelling above; seg- 
ments dolabriform, 3 lines long, with sinistrorse convolution; stamens seated on the 
contraction of the tube, the anthers acuminate, extending beyond the mouth, bidentate 
at the base; disk urceolate, as long as the 2 free ovaries, subcrenulate on the margin, 
unequally and shortly cleft in one or two places; style simple; clavuncle subcapitate, 
with a basal undulated membranaceous expansion; 2 slender follicles, 18 in. long, 
1-2 lines thick, containing many seeds 12 lines long, rostrate at their apex for 4 of their 
length, and there densely and plumosely furnished with long hairs, as in Rhabdadenia, 
the hairs extending 1 in. above the apex, which has no real coma. The species which 
bears the specific name Boissieri, was found in the herbarium of Pavon, without mention 
of its locality. 
The species of Laubertia enumerated by Grisebach all belong to Rhabdadenia or 
Angadenia, 
URECHITES. 
A genus established by Moller in 1860 *; but no figured analysis has been given of it. 
The origin of the generic name is not stated; and there is nothing in its structure that 
can explain this ambiguity. He describes three Mexican species, and a fourth from the 
West Indies, the Echites suberecta of Jacquin (not of Swartz and Andrews). The fruit 
consists of 2 curving follicles, as figured by Jacquin, who simply describes the seeds as 
oblong, and acute at both ends; by Müller these are said to be linear, ovoid, imbricate, 
acuminate, costate, pilose all over, the superior hairs far extended beyond a slender 
rostrum, from which they chiefly originate pinnately, as in a feather, after the manner 
seen in Rhabdadenia; the seeds were too immature to show the embryo. The nume- 
rous seeds, in the language of Miiller, are “in placenta demum membranacea pluri- 
lamellosa numerosa, quibus junctee sunt squamule tot quot semina peculiares cymbi- 
* Bot. Zeit. 1860, p. 23. 
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