232 SAXIFRAGACE, XIII. Vania. 
Tomentose Vahlia. Pl. 4 to 4 foot. 
*# Asiatic species. 
6 V. Orpenza’nviz (D. C. prod. 4. p. 54.) stem erect ; leaves 
linear, pubescent ; peduncles axillary, 2-flowered, shorter than 
the leaves. ©.F. Native of Tranquebar. Oldenlandia pen- 
tandra, Rets, obs. 4. p. 22. Heuchéra dichétoma, Murr. comm. 
goett. 1772. p. 64. f. 1. Oldenlandia dichétoma, Spreng. pug. 
2. p. 36. Flowers white. Perhaps Oldenlandia biflora, Roth, 
nov. spec. 97. but not of Lin. is sufficiently distinct from this ; 
there are varieties of it with 4-5-parted flowers. 
Oldenland’s Vablia. Pl. 4 foot. 
7 V. sessizirtora (D.C, prod. 4. p. 54.) stems decumbent ; 
leaves lanceolate ; flowers axillary, sessile. ©.? H. Native of 
Tranquebar. Oldenlandia digyna, Retz, obs. p. 23. Olden- 
landia decúmbens, Spreng. pug. 2. p. 86. Oldenlandia sessili- 
flòra, Smith in Rees’ cycl. vol. 25. no. 2. Flowers pentapeta- 
lous, digynous, white. 
Sessile-flowered Vahlia. P1. decumbent. 
Obs. The Oldenlandia depréssa of Willd. and Smith will 
probably make an eighth species to this genus when properly 
examined. 
Cult, The seeds of all the species should be reared on a 
hot-bed ; and in the month of May, when the plants will have 
obtained a considerable size, they may be planted out in the open 
border, in a warm sheltered situation. The V. Capénsis, being 
a, herbaceous perennial shrub, will require the treatment of other 
green-house plants. 
XIV. CRYPTOPE'TALUM (from xkpurroc, cryptos, hidden, 
and zeradoyv, petalon, a petal; petals minute, inclosed in the 
calyx). Hook. et Arn. in bot. misc. 3. p. 254. 
Lin. syst. Pentdndria, Trigynia. Calyx turbinate, 5-cleft, 
green: segments ovate, acute, spreading. Petals 5, inserted in 
the tube of the calyx, and alternating with its segments, inclosed, 
minute, spatulate. Stamens 5, inserted in the tube of the calyx, 
small, and almost inclosed, alternating with the petals; filaments 
filiform; anthers minute, roundish, orange-coloured, 2-celled. 
Ovarium subglobose, with the lower part adhering to the calyx: 
upper part free, 1-celled; placentas free, parietal, linear, divari- 
cately bilamellate, many ovulate ; ovula very slender, membra- 
nous. Styles 3, short, hardly united at the base; stigmas 
minutely papillose. Capsule globose, inclosed in the perma- 
nent calyx, l-celled, opening at the cells, and 3-valved in the 
free part; each of the valves terminated by a permanent style. 
Seeds numerous, pale, oval, obtuse at both ends, dotted ; albu- 
men thin, fleshy. Embryo straight, central—A small annual 
smooth herb, about half an inch high. Stems erect, dichoto- 
mous, branched; branches divaricate. Leaves alternate, spatu- 
late, quite entire, fleshy, hardly nerved. Flowers terminal, 
large for the size of the plant, emulating those of Chrysos- 
pléenium. 
1 C. rusrrLum (Hook. et Arn. 1. c.) ©. H. Native of 
Chili, at Quintero. This curious plant is placed at the end of 
Saxifragacee, because it seems more nearly allied to that order 
than to any other; it agrees with Chrysosplénium in many par- 
ticulars. 
Small Cryptopetalum. PI. 4 inch. 
Cult. Sow the seed in a small pot filled with a mixture of 
peat and sand. 
Tribe Il, 
HYDRA'NGE& (plants agreeing with Hydrangea in being 
shrubby). D. C. prod. 4. p. 13. Shrubs, with opposite simple 
exstipulate leaves. Flowers disposed in corymbs, having 5 
petals, 10 stamens, and 2-3 styles; outer ones, and sometimes 
XIV. CRYPTOPETALUM. 
XV. HYDRANGEA. 
all, are often sterile; these sterile ones are more ample and 
dilated than the fertile ones. 
XV. HYDRA/NGEA (from tdwp, hydor, water, and ay- 
yelov, aggeion, a vessel; some of the species grow in water, and 
the capsule has been compared to a cup). Lin. gen. 557. Geertn. 
fruct. 1. p. 150. t. 30. f. 7. Lam. ill. t. 870. D. C. prod. 4, 
p. 13.—Hydrangea and Horténsia, Juss. 
Lin. syst. Decdndria, Di-Trigynia. Flowers usually dif- 
formed (f. 53. a. b.); but some of them are fertile and herma- 
phrodite (f. 53. b.). Tube of calyx hemispherical, 10-ribbed, 
rather truncate, adnate to the ovarium: limb permanent, 5- 
toothed (f. 53. b.). Petals 5, regular. Stamens 10. Styles 2 
(f. 53. c.), distinct. Capsule 2-celled, with introflexed valves, 
crowned by the teeth of the calyx and styles (f. 53. b. c.), flat- 
tish at the top, opening by a hole between the styles. Seeds 
reticulated, numerous.—Shrubs, with opposite leaves. Flowers 
corymbose, red or yellow, but usually white : the marginal ones 
sterile, and large, in consequence of the teeth of the calyx being 
dilated into broad petal-like coloured segments, the rest of the 
flower having the other parts abortive. 
* Species natives of America. 
1 H. arzore’scens (Lin. spec. p. 568.) leaves ovate, rather 
cordate: superior ones lanceolate, coarsely toothed, pale and 
puberulous beneath ; corymbs flattish; flowers nearly all fertile; 
alabastra obtuse. h. H. Native from Pennsylvania to Vir- 
ginia. Flowers white, small, having an agreeable odour. 
Var. a, vulgaris (Ser. in D. C. prod. 4. p. 14.) nerves of 
leaves puberulous. h.H. H. vulgaris, Michx. fl. bor. amer, 
1. p. 268. and probably of Pursh. H. arboréscens, Curt. bot. 
mag. 437. Lam. ill. t. 870. £. 1. Schkuhr, handb. t. 119. Mill. 
fig. 251. H. frutéscens, Moench, meth. 1. p. 106. Du Ham. 
arp- etek ES? 
Var. 3, discolor (Ser. 1. c.) leaves almost white beneath from 
tomentum. 
Arborescent Hydrangea. Fl.Jul. Aug. Clt. 1736. Sh. 4 to 6 ft. 
2 H. corpa'ra (Pursh, fl. amer. sept. 1. p. 309. exclusive of 
the synonyme of Michx.) leaves broadly ovate, acuminated, 
rather cordate at the base, coarsely toothed, glabrous beneath ; 
flowers all fertile. h. H. Native of Carolina, on the moun- 
tains, and on the banks of the Missouri above St. Louis. Wats. 
dendr. brit. t. 42. Flowers small, white, sweet-scented. Ac- 
cording to Torrey, this is merely a variety of H. arboréscens. n 
Cordate-leaved Hydrangea. Fl. July, Aug. Clt. 1806. Sh. 
6 to 8 feet. 
3 H. Peruvia'na (Moric. mss. with a figure, ex D.C. Se 
4. p- 14.) leaves oval, loosely serrated, coriaceous, reticulately 
veined, glabrous, rusty beneath, at the nerves, and on the pa 
tioles; young branches and peduncles clothed with purplis 
tomentum ; outer flowers of the corymb large and sterile : inner 
ones hermaphrodite and petandrous. h. G. Native of Peru, 
near Huyaquaquil. Perhaps a species of Cornidia, and pro 
bably C. Peruvidna. 
Peruvian Hydrangea. Shrub 4 to 6 feet. 
4 H. nivea (Michx. fl. bor; amer. 1. p. 268.) leaves cordate, 
oval, acuminated, sharply toothed, clothed with white tomen 
beneath, or pubescence; corymbs flattish; sepals of ster! : 
flowers entire; alabastra depressed. h. H. Native of Nort 
America, about the Savannah river. Wats. dend. brit. t. 43. 
Lam. ill. t. 307. f. 2. H. radiata, Walt. fl. car. 251. ex Michx. 
but not of Smith. Flowers white, rather large. j 
Var. B, glabélla (Ser. in D. C. prod. 4. p. 14.) leaves ne 
glabrous beneath; flowers all fertile. p. H. This variety nas 
probably originated from culture. ~ 
White-leaved Hydrangea. Fl. July, Aug. Clt. 1786. Sbrub 
4 to 6 feet. 
euauniniiiionie 
