672 



VOCHYSIE^;. VI. ERISMA. VII. LOZANIA. VIII. AGARDHIA. IX. SCHWEIGGERIA. RHIZOPHORE&. 



fore die margin. Stipulas 2, small, at the base of each leaf. 

 Panicle terminal, with opposite branches and branchlets, furnished 

 with 2 unequal membranous deciduous bracteas to each ramifi- 

 cation. 



1 E. FLORIBU'NDUM (Rudge, 1. c.) leaves ovate, acutish, with 

 16-18 lateral nerves on each side, having the upper surfaces 

 hardly shining ; branches of panicle clothed with rusty velvety 

 down. 5? . S. Native of French Guiana. Tratt. obs. bot. 3. 

 p. 71. t. 105. Debrse'a floribunda, Rcem. et Schultes, syst. 1. 

 p. 34. Ditmaria floribunda, Spreng. syst. 1. p. 16. Petal 

 violaceous. 



Bundle-flowered Erisma. Tree 40 feet. 



2 E. VIOLA'CEUM (Mart. bras. 1. p. 137. t. 82.) leaves oblong, 

 cuspidate, with 10-12 lateral distant nerves on each side; 

 branches of corymbose panicle smoothish. Jj . S. Native of 

 Brazil, in moist woods in Para. Qualea calcarata, Link, jahrb. 

 gew. 1. 3. p. 24. Schultes, mant. 1. p. 53. Petal violaceous. 



F/o/aceows-petalled Erisma. Tree 30 to 40 feet. 



3 E. NI'TIDUM (D. C. prod. 3. p. 30.) leaves oval, acute, 

 with 7-9 lateral nerves on each side, shining on the upper 

 surface ; branches of panicle striated and glabrous. tj . S. 

 Native of Cayenne, on the mountains of Roura near Kaw. 

 Qualea lutea, Martin in Desf. herb. Petal yellow. 



j$7(mmg--leaved Erisma. Tree 30 to 40 feet. 



Cult. See Vocliynia for culture and propagation, p. 670. 



t The following genera are hardly known, and very doubtful 

 whether they belong to the present order. 



VII. LOZA'NIA (evidently a proper name, and perhaps the 

 name of some botanist known to Mutis). Seb. Mat. in sem. 

 nov. granad. 1810. p. 20. D. C. prod. 3. p. 30. 



LIN. SYST. Mondndria, Monogynia. Calyx with a somewhat 

 ventricose tube, and a 4-parted limb ; lobes ovate, acute, spread- 

 ing, permanent. Petals wanting. Disk quadrangular, filling the 

 bottom of the calyx. Stamen 1, small, inserted obliquely under 

 the ovarium, and tapering to the apex ; anther ovate, didymous. 

 Ovary ovate. Stigmas 3, small, subcapitate. Capsule ovate, 

 trigonal, acuminated, 3-celled, 3-valved. Seeds 6, with usually 

 3 of them abortive, angular, inserted in the bottom of the cap- 

 sule. A tree, with alternate oblong serrated leaves, and spikes 

 of flowers ; peduncles axillary, crowded ; pedicels furnished each 

 with a linear bracteole at the base. 



1 L. NEMORA'LIS (Seb. Mut. 1. c.) Tj . S. Native of New 

 Granada, in temperate parts. 



Grove Lozania. Tree. 



Cult. See Fochy'sia for culture and propagation, p, 670. 



VIII. AGA'RDHIA (in honour of Charles Agardh, a Swedish 

 professor and writer upon Algae ; author of Synopsis Algarum 

 Scandanavise, Lund. 1817. 8vo. and other works on the same 

 subject). Spreng. syst. 1. p. 4. D. C. prod. 3. p. 30. 



LIN. sysi. Mondndria, Monogynia. Calyx of 3 sepals. Petals 

 5, convolute. Stamen I, bearing a large, 2-celled anther. Drupe 

 oval, 3-celled, 3-valved. The rest unknown. Perhaps more 

 nearly allied to Tereb/nt/taccce. It is a very doubtful genus. 



1 A. CRYPTA'NTIIA (Spreng. syst. 1. p. 17.) leaves ovate, 

 acute, glabrous on both surfaces ; raceme terminal. Jj . S. Na- 

 tive of Brazil. 



Hidden-flowered Agardhia. Tree. 



2 A. GRANUIFLORA (Spreng. 1. c.) leaves cordate, oblong, 

 coriaceous, with parallel veins, discoloured beneath and villously 

 tomentose ; racemes verticillate ; flowers villous, as well as the 

 petioles and peduncles, which are glandular at the base. Jj . S. 

 Native of Brazil. 



Great-flowered Agardhia. Tree. 



Cult. See Fochy'sia for culture and propagation, p. 670. 



IX.? SCHWEIGGE'RIA (in honour of A. F. Schweigger, 

 author of Flora Erlangensis). Spreng. syst. 1. p. 167. D. C. 

 prod. 3. p. 30. 



LIN. SYST. Mondndria, Monogynia. Calyx of 3 corolline 

 sepals. Petals 3, one of which is furnished with a spur, the 

 other two erect and cartilaginous. Glands 5, ovate, surrounding 

 the base of the stamen, which is columnar and triquetrous, and 

 bearing an anther at the apex. Pistil none. Fruit unknown. 

 A little shrub, with the habit of Betula fruticdsa, with scat- 

 tered, sub-fascicled, obovate, crenulated, glabrous leaves ; and 

 axillary bibracteate pedicels. Flowers small, like those of a 

 violet. This genus is hardly known. 



1 S. FRUTICOSA (Spreng. 1. c.) T; . S. Native of Brazil. 



Shrubby Schweiggeria. Shrub. 



Cult. See Vochysia for culture and propagation, p. 670. 



ORDER XCI. RHIZOPHO'RE,E (plants agreeing with Rhi- 

 xophdra or Mangrove in particular characters). R. Brown, gen. 

 rem. p. 17. Cong. p. 18. D. C. prod. 3. p. 31. Paletuviers, 

 Savig. in Lam. diet. 4. p. 696. 



Tube of calyx adhering to the ovarium (f. 92. a./.), except in 

 the genus Cassipourea, which is free ; limb 4-13-lobed (f. 92. e.); 

 lobes valvate in aestivation (but in Olisbea calyptriform). Petals 

 inserted in the calyx (f. 92. c.), and alternating with its lobes, 

 therefore equal to them in number. Stamens inserted with the 

 petals (f. 92. rf.), equal to them in number, or double or triple 

 that number ; filaments free, subulate, erect ; anthers ovate, in- 

 serted by the base, erect, but somewhat incurved in the genus 

 Olisbea. Ovary adnate to the calyx (f. 92. a.), 2-celled ; cells 

 2 or many-ovulate ; ovula pendulous. Fruit indehiscent (f. 92. 

 /.), 1-celled, 1-seeded, crowned by the calyx (f. 92. e.). Seed 

 pendulous, exalbuminous. Embryo with a very long radicle and 

 2 flat cotyledons. Tropical trees or shrubs, with opposite, sim- 

 ple, entire, or toothed leaves, having the lateral nerves feathered 

 when present. Stipulas interpetiolar. Peduncles axillary. 



From a consideration of the structure of Camilla and Leg- 

 notes, Mr. Brown has been led to conclude, that we have a 

 series of structures, connecting Rhizophurece on the one hand 

 with certain genera of Salicariece, particularly with Antherl- 

 lium, though that genus wants its intermediate Stipulas, and 

 on the other with Cunomacece, especially with the simple- 

 leaved species of Ceratopetalum. In the opposite leaves, in- 

 terpetiolar stipulas, adnate ovarium, and polypetalous flowers, 

 this order agrees with Fochysiece and Cunoniacece; in the val- 

 vate calyx with Lythrariece and Cunoniacea- ; and in the pen- 

 dulous ovulas with Combrelacece. The genus Olisbea seems 

 to come nearest to Memecylece. The species of Rhizophora 

 or Mangrove are remarkable in tropical countries for growing 

 upon the shores of the sea and rivers, even as far as low water. 

 The seeds have the singular property of germinating while in- 

 closed within the capsule, and adhering to their parent, and 

 pushing forth a long fusiform radicle, which lengthens till it 

 reaches and fixes itself in the mud in which the parent grows, 

 and forms a new individual. These young plants never separate 

 from the parent until they are fairly fixed and rooted, as other- 

 wise they would be washed away by the tide. Where man- 

 groves grow in abundance, the situation is always considered un- 

 healthy, from their collecting a vast quantity of filth about their 



