UMBELLIFER^E. I. HYDROCOTYLE. II. CRANTZIA. 



255 



petioles ; umbels capitate, 3-flowered ; fruit compressed, some- 

 what didymous, furnished with 2 ribs on each side. Jj . G. 

 Native of the Cape of Good Hope. Rich. hydr. no. 52. f. 36. 

 Cham, et Schlecht. Linnasa. 1826. p. 354. B61ax triloba, 

 Spreng. umb. prod. p. 34. Allied to H. tridentata, but differs 

 in the smoothness of all parts of the plant. Bracteas longer than 

 the flowers. Middle flower in each umbel fertile : lateral 2 

 sterile. 



Three-lobed-\ea.ve& Penny-wort. Fl. June, Aug. Clt. 1810. 

 PI. | foot. 



87 H. SOLA'NDRA (Lin. fil. suppl. 176.) the whole plant 

 clothed with hoary tomentum, the petals only excepted ; leaves 

 petiolate, obovately cuneiform, bluntly 7-toothed at the apex ; 

 umbels pedunculate, 5-6-flowered ; flowers on short pedicels ; 

 leaves of involucrum ovate-lanceolate, glabrous inside. f? . G. 

 Native of the Cape of Good Hope, on hills. Lam. diet. 8. 

 p. 155. Rich. hydr. no. 53. H. tomentosa, Thunb. diss. 2. p. 

 416. Spreng. in Schultes, syst. 6. p. 593. Solandra Capensis, 

 Lin. spec. 1407. exclusive of the synonymes. Perhaps numer- 

 ous species are here confused. 



Var. a, longipes (D. C. prod. 4. p. 69.) peduncles exceeding 

 the leaves in length. 



Var. j3, communis (D. C. I. c.) peduncles length of the leaves. 

 Lam. ill. t. 188. f. 5. Sieb. cap. exsic. no. 140. 



Var. y. ? longifblia (D. C. 1. c.) peduncles much shorter than 

 the leaves ; leaves cuneate, elongated. Native of the Cape of 

 Good Hope. Burchell. Perhaps a proper species. 



Solander's Penny-wort. PI. -| foot. 



88 H. CENTE'LLA (Cham, et Schlecht. in Linnaea. 1. p. 

 375.) plant shrubby ; leaves oblong, cuneated or lanceolate, 3- 

 nerved, quite entire; umbels pedunculate, 3-5- flowered, with 

 usually only one male flower ; leaves of involucrum ovate-lan- 

 ceolate ; petals glabrous. J? . G. Native of the Cape of Good 

 Hope, where the plant varies much in form and habit. 



Var. a, glabrescens (D. C. prod. 4. p. 69.) adult leaves gla- 

 brous, oblong-lanceolate. H. glabrata, Lin. fil. suppl. p. 176. 

 Spreng. syst. 1. p. 878. Centella glabra, Lin. amcen. 6. afr. p. 

 100. H. glabra, Thunb. fl. cap. 251. 



Var. /3, latifblia (D. C. 1. c.) leaves glabrous, cuneiformly 

 oval. H. bupleurifolia, Rich. hydr. no. 55. f. 39. 



Var. y, linifolia (D. C. 1. c.) leaves clothed with canescent 

 hairs, linear-spatulate. H. linifolia, Lin. fil. suppl. 176. Thunb. 

 diss. 2. p. 413. Rich. I.e. 



Var. S, plantaginea (D. C. 1. c.) leaves canescent from hairs, 

 oblong. H. plantaginea, Spreng. ne'ue entd. 1. p. 284. grundz. 

 t. 8. f. 5-7. 



Centella Penny-wort." PI. ^ foot. 



89 H. MONTA'NA (Cham, et Schlecht. in Linnsea. 1. p. 

 874.) plant shrubby, when young villous, at length glabrous; 

 leaves lanceolate, quite entire or somewhat tridentate, 3-nerved ; 

 petioles villous ; umbels 3-flowered, on short peduncles ; leaves 

 of involucrum 2, twice the length of the nearly orbicular corru- 

 gate fruit, f? . G. Native of the Cape of Good Hope, on the 

 tops of mountains. A humble depressed branched shrub. Me- 

 ricarps tumid, with 5 filiform ribs, and flattish furrows. 



Mountain Penny-wort. Shrub depressed, 



90 H. VIRGA'TA (Lin. fil. suppl. p. 176.) plant shrubby, erect, 

 branched ; leaves linear-filiform, quite entire ; umbels peduncu- 

 late, 1-3-flowered ; flowers hardly pedicellate ; leaves of involu- 

 crum lanceolate ; fruit orbicular, obcordate, furnished with 2 

 ribs on each side: Tj . G. Native of the Cape of Good Hope, 

 ex Cham, et Schlecht. in Linnaea. 1. p. 379. 



Var. a, glaberrima (D. C. prod. 4. p. 69.) plant twiggy, quite 

 glabrous ; flowers polygamous and monoecious. H. virgata, 

 Lam. ill. t. 188. f. 3. Spren<j. syst. 1. p. 878. 



Var. ft, lanuginbsa (D. C. 1. c.) plant twiggy, clothed with 



lanuginous villi ; flower polygamo-monoecious ; leaves ex- 

 panded into linear lamina at the apex. Cham, et Schlecht. 



Var. y, macrocdrpa (D. C. 1. c.) plant twiggy, glabrous; 

 flowers polygamo-dioecious ; fruit larger H. macrocarpa, 

 Rich. hydr. no. 57. f. 40. Pluk. aim. t. 310. f. 7. 



Var. , nana (D. C. 1. c.) plant short, glabrous ; flowers poly- 

 gamo-dioecious. 



Twiggy Penny-wort. PI. -J to foot. 



t Species not sufficiently known. 



91 H. FLU'ITANS (B.C. prod. 4. p. 69.) stems submersed, 

 straight, fistular ; leaves peltate, orbicular, shining, floating ; 

 petioles thickened from the base to the apex. I/ . W. H. Na- 

 tive of Louisiana, floating in lakes and tranquil rivers, through 

 immense tracts. H. incrassatum, Rafin. fl. lud. p. 81. but not 

 of Ruiz et Pav. Hydrocotyle Robin, Louis, p. 461. ex Rafin. 

 It grows also in water in Florida, very common. The stems 

 have numerous fibres, issuing from the joints. The leaves are 

 on long petioles, orbicular, peltate, and 15-20-nerved, glabrous, 

 bluntly somewhat lobed, and crenated. Very like //. natans, 

 but differs in the leaves being peltate. 



Floating Penny-wort. PI. floating. 



92 H. HEDER^EFOLIA (Burch. cat. geogr. no. 558. trav. 1. p. 

 46.) plant decumbent, villous ; leaves reniform, 3-5-angled ; 

 angles acute. 1 . G. Native of the Cape of Good Hope. The 

 rest unknown. 



Ivy-leaved Penny-wort. PI. decumbent. 



93 H. RACEMOSA (Moc. et Sesse, fl. mex. icon. ined. ex D. C. 

 prod. 4. p. 70.) plant glabrous ; leaves petiolate, orbicularly re- 

 niform, broadly crenated, with a narrow recess ; peduncles twice 

 the length of the leaves ; flowers pedicellate, verticillate, dis- 

 posed in interrupted racemes; fruit nearly globose. I/. F. 

 Native of Mexico. Stems creeping. Leaves rising from the 

 nodi of the stems in fascicles ; petioles 12-15 lines long. Allied 

 to H. interrupta, but the leaves are not peltate ; and to H, spi- 

 cdta, but the flowers are evidently pedicellate. 



/facewiose-flowered Penny-wort. PI. cr. 



94 H. GRUMbsA (Moc. et Sesse, fl. mex. icon. ined. ex D. C. 

 prod. 4. p. 70.) plant glabrous ; stems ascending ; root grumose, 

 fascicled ; petioles dilated and stem-clasping at the base ; leaves 

 orbicular, cordate, crenated ; umbels in fascicles ; flowers dis- 

 tinctly pedicellate. 2/ . B. F. Native of Mexico. 



Grumose-rooted Penny-wort. PI. 



95 H. PINNATI'FIDA (Spreng. pug. 2. p. 47.) stems erect, gla- 

 brous ; leaves pinnatifid ; segments oblong, a little cut ; umbels 

 usually 3-flowered, involucrated. Native country unknown. 

 In Sprengel's subsequent works this plant is not admitted, and 

 the name is omitted as a synonyme : it is therefore very 

 doubtful. 



Pinnatifd-leaved Pennywort. PI. ? 



Cult. All the species are of the most easy culture, but require 

 to be kept moist. The stove, greenhouse, and frame kinds 

 should be grown in pots, under which should be placed pans of 

 water. 



II. CR A'NTZIA (in honour of Henry John Nepom Crantz, 

 author of Stirpium Austriacarum, 4to. Vienna, 1762-1768; 

 Classis Umbelliferarum Emendata, &c.) Nutt. gen. amer. 1. p. 

 177. Koch, in litt. ex D. C. coll. mem. 5. p. 27. prod. 4. p. 70. 

 Hydrocotyle species, Michx. 



LIN. SYST. Pentdndria, Digynia. Tube of calyx nearly 

 globose ; limb very short or hardly any. Petals roundish, entire, 

 obtuse. Styles obtuse. Fruit roundish, with the commissure 

 nearly orbicular from the excavation ; mericarps unequal, fur- 

 nished with 3 ribs on the back (ex Nutt.), but according to 

 Koch 5 filiform ribs : the lateral ones marginal, broader, thick 



