RUBIACE.E. CXVII. HAMILTONIA. CXVIII. LEPTODERMIS. CXIX. PSATHURA. 



555 



FIG. 102. 



Corolla funnel-shaped, with a long straight tube (f. 102. 6.), 

 and 5 oblong lobes (f. 102. c.). Stamens 5, inserted in the 

 throat of the corolla, inclosed. Stigma 5-cleft. Capsule crowned 

 by the calyx, dehiscing at the apex, 1 -celled, containing 5 tri- 

 quetrous 1 -seeded pyrenae. Seeds inserted by the base, erect, 

 covered by a dry reticulated membrane or epidermis. Albumen 

 very sparing. Embryo erect, with an oblong radicle, and cor- 

 date foliaceous cotyledons. East Indian shrubs. Leaves lan- 

 ceolate, on short petioles. Stipulas short, acute, broad and 

 adpressed at the base. Flowers disposed in fascicles or umbels, 

 sweet-scented. This genus has been joined with Ancyldnthus 

 by Jussieu, but is sufficiently distinct from that genus. 



1 H. SUAVE'OLENS (Roxb. 

 hort. beng. p. 15. fl. ind. 2. p. 

 223.) glabrous ; leaves broad- 

 lanceolate ; heads of flowers 

 densely umbellate, pedunculate, 

 terminal ; calyx beset with glan- 

 dular hairs. Jj . S. Native of 

 the East Indies, on the Rajmu- 

 hal hills. Spermadictyon suaveo- 

 lens, Roxb. cor. 3. p. 32. t. 236. 

 R. Br. in hot. reg. t. 348. La- 

 sianthus tubiflorus, Blum, bijdr. 

 p. 990. Leaves 3-6 inches 

 long. Stipulas broad, ensiform. 

 Flowers sessile, in terminal co- 

 rymb-formed heads, on short 

 trichotomous branchlets, numer- 

 ous, pure white, delightfully fragrant. 



Sweet-scented Hamiltonia. Fl. Oct. Clt. 1818. Sh. 4 to 6 ft. 



2 H. SCA'BRA (D. Don, prod. fl. nep. p. 137.) leaves ovate- 

 lanceolate, short-acuminated, scabrous on both surfaces, rounded 

 at the base ; calycine segments linear, villous. t? . S. Native 

 of Nipaul, at Narainhetty, and between Hetounra and Bhem- 

 pedi, chiefly between Bhinsadoban, and the last-mentioned vil- 

 lage, forming the most extensive thickets. Dr. Wallich has also 

 met with it about the village near Cheesnagurree, and on several 

 mountains in the valley. Hamiltonia Dulma and Nonatelia 

 filamentosa, Hamilt. mss. Hamilt. azureum, Wall, in Roxb. fl. 

 ind. 2. p. 225. Spermadictyon azureum, Lindl. bot. reg. 1235. 

 Flowers azure blue, perfuming the air by their delicious fra- 

 grance from November until March, during which time they are 

 very beautiful. Inflorescence ample, densely villous, especially 

 the corollas. The tender parts of the plant emit a fetid smell, 

 like those of Peederia and Serissa. 



Scabrous Hamiltonia. Fl. Jan. Clt. 1823.? Sh. 4 to 6 ft. 



3 H. FILOSA (Roxb. fl. ind. 2. p. 226.) shrub stiff, very 

 pilose : leaves lanceolate ; fascicles of flowers axillary, inter- 

 mixed with hairy bracteas. fj . S. Native of the Moluccas. 



Pilose Hamiltonia. Shrub 4 to 6 feet. 



Cult. The species are desirable for every collection of stove 

 plants, being free flowerers, very fragrant, and of easy culture. 

 They succeed best in a mixture of loam and peat ; and cuttings 

 strike root readily in sand, with a hand-glass over them, in a 

 moist heat. 



CXVIII. LEPTODE'RMIS (from \n-oe, leptos, slender, 

 and Seppa, derma, the skin ; the branches are covered with 

 separating fibrous bark). Wall, in Roxb. fl. ind. 2. p. 191. 

 A. Rich, mem. soc. hist. nat. par. 5. p. 221. D. C. prod. 4. 

 p. 462. Hamiltonia species, D. Don, prod. fl. nep. p. 137. 



LIN. SYST. Pentdndria, Monogijnia. Involucrum calyciform, 

 of 2 leaves, closely girding the ovarium. Tube of calyx in- 

 closed within the involucrum ; limb of calyx short, permanent, 

 5-)obed ; lobes roundish, adpressed. Corolla funnel-shaped, 



scabrous from minute papillae, with a terete tube, which is hairy 

 inside, and 5 ovate cuspidate lobes which are involutely valvate 

 in aestivation. Stamens 5, with very short filaments and in- 

 closed anthers. Ovarium 5-celled ; cells 1 -seeded. Style fili- 

 form ; stigma quadrifid. Fruit oblong, 5-celled? 5-valved ? 

 5-seeded. Shrubs, with decussate, tetragonal branches. Leaves 

 lanceolate or oblong, on short petioles, membranous. Stipulas 

 length of petioles, adpressed, permanent, acute. Flowers 

 sessile, scentless, white. Perhaps sufficiently distinct from Ha- 

 miltbnia. 



1 L. LANCEOLA'TA (Wall, in Roxb. fl. ind. 2. p. 191.) leaves 

 lanceolate, attenuated, acute, membranous, villous ; flowers ses- 

 sile by threes at the ends of the branches ; Stipulas triangular, 

 villous ; branches quadrangular, downy while young. Tj . G. 

 Native of Nipaul, on the mountains, though it is among the less 

 common plants. Hamiltonia fruticosa, D. Don, prod. fl. nep. 

 p. 137. Flowers white, scentless. According to the descrip- 

 tion in fl. nep. the flowers are said to be hexamerous and hex- 

 androus. _ 



Zanceo/ate-leaved Leptodemjisr--~Srirub 3 to~? feet^, 



2 L. OBLO'NGA (Bunge^jfrinem. acad. sc. Petersb. 2. p. 108.) 

 leaves oblong, glabrpttsi flowers terminal, aggregate. fj . G. 

 Native of China, off the mountains. 



OWong-leaved Leptodermis. Shrub. 



Cult, See Hamiltonia above for culture and propagation. 



CXIX. PSATHU'RA (from ^aBvpoc, psathuros, fragile or 

 brittle ; the branches are brittle). Comm. in Juss. gen. p. 206. 

 mem. mus. 6. p. 396. Lam. ill. t. 260. Gaertn. fil. carp. 3. 

 p. 82. t. 194. f. 4. A. Rich, mem. soc. hist. nat. par. 5. p. 214. 

 D. C. prod. 4. p. 462. Chicoinae'a, Comm. Psatura, Poir. 

 diet. 6. p. 587. Psathyra, Spreng. syst. 2. p. 127. but not of 

 Fries. 



LIN. SYST. Penta-Hex6ndria, Monogynia. Calyx with an 

 ovate tube, and a campanulate 5-6-toothed permanent limb. 

 Corolla bearded inside, with a short tube, and a 5-6-lobed 

 spreading limb ; lobes acute, rather longer than the tube, valvate 

 in aestivation. Anthers 5-6, almost sessile at the throat. Stigmas 

 5-6-lamellate. Berry globose, furrowed, crowned by the limb 

 of the calyx, containing 4-6 1 -seeded pyrenae. Seeds erect. 

 Albumen fleshy. Embryo erect. Small glabrous trees, with 

 knotted fragile branches. Leaves lanceolate, acute at both ends, 

 petiolate, smooth. Stipulas ovate, caducous, with an elevated 

 zone, which is joined to the petioles. Peduncles rising from 

 the axils of the upper leaves, loosely panicled, shorter than the 

 leaves. 



1 P. BORBONICA (Gmel. syst. 1. p. 577.) leaves oblong-lan- 

 ceolate ; peduncles 7-8-flowered. Tj . S. Native of the Island 

 of Bourbon, on the mountains, where it is called Bois cassant. 

 P. corymbosa, Gaertn. fil. carp. 3. p. 82. P. Borbonica, Roxb. 

 fl. ind. 2. p. 158. Flowers minute, pentandrous, disposed in 

 axillary and terminal trichotomous corymbs. Stigma 2-lobed. 

 Drupe containing 5 pyrenae. 



Bourbon Psathura. Tree small. 



2 P. MYRTIFOLIA (A. Rich, diss. 1. c.) leaves oblong, bluntish; 

 peduncles usually 3-flowered, lateral flowers sterile and decidu- 

 ous ; limb of calyx 5-parted ; lobes lanceolate, f? . S. Native of 

 the Mauritius. Perhaps sufficiently distinct from the pre- 

 ceding. 



Myrtle-leaved Psathura. Tree small. 



3 P. TERNIFLORA (A. Rich, diss. 1. c.) leaves elliptic-lanceo- 

 late, acute ; peduncles at the tops of the branchlets, usually by 

 threes, 1-flowered ; limb of calyx wide, obsoletely 5-7-toothed. 

 fy . S. Native of the Mauritius. 



Three-flowered Psathura. Tree small. 

 Cult. For culture and propagation see Hamillbnia above. 

 4u 2 



