LXXV. RUBIACEJ;. (J. D. Hooker.) 149 



Wit/lit Ic. t. 318; Dalz. $ Gibs. Bomb. Fl. 113; Kurz For. Fl. ii. 23. I. 

 affinis, Wall Cat. 6144. ? I. densa, Br. in Wall. Cat. 6150. 



N PENINSULA, or the Grhats from the Concan southwards ; EASTERN PENIN- 

 SULA, from PEGU to MALACCA; PENANG, Maingay (Kew Distrib. 859); CACHAB, 

 Kcenan. DISTRIB. Birma, Malay Archipelago. 



An evergreen tree or large shrub, branchlets and inflorescence as well as the 

 leaves black when dry. Leaves 5-7 by 1-2^ in., membranous, base rounded or acute, 

 upper pair rarely small elliptic and sessile; nerves very slender; petiole - j in. ; 

 stipules with long hair-like cusps in. long, or broad and shortly cuspidate. Cymes 

 2-6 in. broad, shorter than broad ; peduncles erect, 2 in. and under or ; bracts very 

 slender, persistent or not ; bracteoles subulate, very persistent ; flowers few or nume- 

 rous, white, odorous ; lobes of corolla forming a very narrow bud not much broader 

 than the tube. Calyx-teeth short or long, always acute or acuminate. Filaments 

 slender ; anthers very long, almost filiform. Fruit size of a pea, glabrous or didy 

 mous. Seed plano-convex (as far as I can ascertain). The Cachar specimens have 

 shorter calyx-lobes than the others. Apparently a common and a variable Malayan 

 plant, published under several names, as laxiflora, Hassk. ; subulata, Teysm. & 

 Binnend ; and acutiflora, Eeinw. The /. densa, Br., from Penang, is probably a state 

 of this with more coriaceous elliptic-lanceolate leaves, of a paler colour; the flowers 

 are stated to be red, but as there are two plants on the sheet no confidence can be 

 placed in the ticket. 



VAR. arguta;' leaves narrow) y oblanceolate or elliptic -lanceolate acuminate 4-5 

 by 1-1| in. I. ? arguta, Br. in Wall. Cat. 6157. Western Peninsula, Heyne; Purwur 

 Ghat, Bombay, Ritchie. 



37. I. erubescens, Watt. Cat. 6143; glabrous, black when dry, branches 

 slender, leaves sessile or subsessile elliptic-oblong, tip rounded or obtuse, base 

 cuneate or rounded, nerves 8-12 pair, upper pair often cordate, cymes peduncled 

 or sessile brachiate, branches slender, stipules with slender cusps, calyx-teeth 

 very small sxibacute, corolla-tube A- in., lobes slender, mouth naked, stigma long 

 arms slender. G. Don Gen. Syst. iii. 571 (character erroneous). I. memecy- 

 lifolia, Kurz in Journ. As. Soc. 1872, ii. 316 ; For. Fl. ii. 24. 



MARTABAN and TENASSERIM, Wallich, Heifer, Kurz; Moulmein, Griffith. 



Doubtfully distinct from I. nigricans by the subsessile more oblong leaves, obtuse 

 at both ends, with fewer nerves ; the peculiar buds are identical. Kurz makes /. 

 erubescens a var. of nigricans, distinguished by the obtuse corolla-lobes, but does not 

 describe those of his 7. memecylifolia, which is identical with "Wallich's erubescens, 

 and;the corolla-lobes of which are exactly like that of nigricans proper. 



IMPERFECTLY KNOWN, DOUBTFUL, AND REJECTED SPECIES. 



? ^~ >t X5LAUCINA, Kurz For. Fl. ii. 27; glabrous, leaves 4-6 in. oblong to elliptic- 

 lanceolate shortly acuminate, base acute, petiole ^-f in., cymes corymbiform sessile, 

 flowers crowded scarlet, calyx globose, teeth short triangular 2 acute 2 obtuse, 

 .corolla-tube 1 in., lobes ovate-lanceolate acute. Upper Tenasserim. 



I. PANICULATA, Hb. Bottler in Wall. Cat. 6163; glabrous, slender, leaves 3-4 in. 

 oblong obtuse thin, petiole very short, stipules short cuspidate, peduncles 3 in. slender, 

 cymes brachiate, branches 1-2 in. slender shortly branched at the end, flowers few 

 sessile and pedicelled, calyx-teeth minute acute, corolla-tube 1 in., lobes linear-oblong, 

 mouth glabrous. Herb. Heyne, from Eottler. I think this is /. oblonga, Br., of 

 Singapore and Java, whence possibly Eottler procured it. 



,* ' I. WALLICHII, W. A. Prodr. 428; not of Wight Herb. This is probably 7. 

 cuneifolia. 



I. ATTENUATA, Wall. Cat. 6164, is Chasalia curviflora, Thw. 



,*^* * rf ^ ' 



67. FAVETTA,Zmrc. 



Characters of Ixora, but stipular bracts membranous, leaves usually more 

 membranous, stipules more united into an intrapetiolar sheath, style much 



