2 DILLBNIACEiE. 



Goudot); bnt the differences from the Ei||3pean type, considerable as they appear, are 

 more or less annihilated by the comparison of the variable states of the North American 

 plant, as defined by Asa Gray, thus exhibiting a remarkable instance of a chmahc variety. 

 The large, marginate, somewhat dotted achenia, and the size of their beak, are the same m 

 all forms of the species ; the number of petals Increases usually In the iJ. re-pena ot iexas. 

 The beak becomes straightish in the common form of the "United States, and tn^ o^'y ".™- 

 rence between the var. tro'picus and the Tar. marylandicus or other forms of North America, 

 would consist intheusuaUy reflexed calyx— Hab. Jamaica !, Macf., on the Blue Mountams, 

 elev. 5000' ; [Andes of S. America I, on alpine pastures]. 

 ^ 4*. R. parviflorus, L. Subdecombent, villous ; leaves roundish, 3-5-lobed j calyx 

 at length reflexed, equalling the petals; carpels roundish, marginate, tuberculate, with a 

 short, usually hooked beak: margin acute.— iJcAi. Ic. Germ. 3. t. 22.— Hab Jamaica 1, 

 Macf., naturalized on elevated pastures ; [Europe I, Levant !, S. TJ. States 1, Califorma.J. 



II. DILLENIACE.a;. 



Flower-organs distinct from each other. Sepals persistent. Seeds arillate : embryo mi- 

 nute, included in the top of the endosperm. — leaves penninerved, not divided. Stem ?« 

 the West Indian genera woody. 



The leaves of the Delimea (which is the tribe of the Order, represented in America) are 

 usually rough with asperities (not with hairs), and used for polishing, as those of Curatella. 

 No properties bat the astringent principle are known. 



1. TETRACEBA, Z. 



Sepals 5, one eiterior, two interior, subvalvate, not exceeding the outer ones. Stamens 

 indefinite : anther-ceBs minute, divergent. Carpels 2-5 (-1), follicular: seeds ]-5. — Shrubs, 

 iisually scandent ; panicle terminal or lateral. 



1. T. volubilis, L. (ex syn. Plttkn.). Leaves rough, obovate, serrate: serratures re- 

 mote, terminating the 8-16 equidistant veins, decreasing towards the leaf-base; panicle 

 loose : branches racemiform ; flowers polygamous ; sepals obovate, silky on the inner side j ■ 

 cai-pels one-seeded.— P^mAb. Aim. t. 146./. 1; Desc. Fl. 7. t. 459; Rich. Ouh. t. 4. — ^T. 

 Pocppigiana, Schlecht. I T. jamaicensis, DC. ex Macf. Tigarea aspera, Besc. — Linnseus 

 confounded several plants under the above name ; but his observation on Plukenet's figure 

 ' shows that he had Schlechtendal's species in view, which, according to Herb. Hook., is the T. 

 volubilis, L. fil. and Sm. This is the only Dilleniacea in Macfadyen's Mora, and sent by him 

 to Sir W. Hooker ; but his description and locality also apply to Davilla surinamensis, which 

 he confounded with it. Hence what he says of the leaves and the fruit belong to this, 

 while he describes the calyx of Davilla. — Hab, Jamaica I, Macf., in woods ; Barbadoes ; 

 [Cuba ! and Mexico ! to Eio Janeiro !]. 



2. T. ovalifolia, DC. leaves rough, obovate or obovate-oblong, entire, retuse or mn- 

 cronate : veins equidistant, 8-13, prominent beneath ; panicle loose : branches short, race- 

 miform ; flowers polygamous ; sepals roundish, pubescent and ciliate ; carpels one-seeded : 

 arillus large, laciniate. — Deless. le. 1. t. 68. — T. aspemla, Miq. — ^A scandent shrub, similar 

 to the preceding, and variable in the form of its leaves, but without any serratures. — Hab. 

 Trinidad!, Cr.,- [Guianal]. 



2. DAVILLA, Vand. 



Sepals 5, two exterior, two interior, subvalvate, excrescent, much exceeding the three 

 outer ones, and enclosing the fruit. Stamens indefinite: anther-cells minute, divergent. 

 Carpels 1 (-3) : stigma peltate. Follicle single, rupturing, one-seeded (by abortion of a 

 second ovule) . — Scandent shrubs ; panicles terminal and axillary : flowers yellow. 



3. D. rugosa, Poir. Leaves rough, ovate-oblong, subentire or repand: petiole margi- 

 nate upwards ; panicle constituted of ♦terminal and axillary corymbs : pedicels pilose ; inner 

 sepals crustaceous, and at length shining, glabrate. — Deless. Ic. 1. 1. 71 ; Mch. Cub. t. 2, 3. 

 — D. brasiliana, DC. D. surinamensis, Miq. D. ciliata, Rich. .'; the younger plant, with 

 downy inner sepals. D, Sagrseana, Rich. : a form with broader leaves, and the inflores- 



