CONVOLVULACEAE. — PORANA 359 



membranacea, subtus viridia, sparse (praecipue in nervis) v. vix puberula, subtus 

 plus minusve flavo-pubescentia, basi 5-nervata, margine obscure breviter den- 

 ticulata v. subintegra, ad 11 cm. longa et 9 cm. lata, inflorescentiorum minora, 

 subacuminata, supra laxe, subtus dense flavo-tomentella, 2-7 cm. longa, 1.2-4 cm. 

 lata; petioli foliorum majorum circiter 1.8 cm. longa, plus minusve puberula, folio- 

 rum inflorescentiarum breviores, tomentelli. Inflorescentiae multiflorae, cymoso- 

 paniculatae, axibus primariis foliatis ad 50 cm., secundariis ad 15 cm. longis, 

 partibus omnibus flavo-tomentellae ; pedunculi (axes tertiarii) multiflori, bracteis 

 lanceolatis parvis suffulti; flores flavo-albi, minimi, 4-5 mm. longi, campanulati, 

 limbo apcrto circiter 4 mm. diametiente; petioli floribus subaequilongi, medio et 

 apice prophyllis 2 minimis instructi; sepala 5, aequalia, lanceolata, subacuta, cor- 

 olla fere 3-plo breviora, extus ut corolla dense flavo-tomentella, fructifera ignota; 

 lobi corollae lati, apiculati, ad margines extus apice excepto glabriusculi, tubo 

 3-plo breviores; stamina 5, inaequalia, omnia ad partem inferiorem sparse pilo- 

 sum tubi insertae, 3 longiora corollam superantia, 2 tubo breviora; filamenta lib- 

 era glabra, antheris versatilibus oblongis pro genere normalibus longiora; gynae- 

 ceum breve, vix medium tubi aequans; ovarium apice pilosum stylo simplici vix 

 aequilongo stigmatibus 2 subglobosis cohaerentibus coronato, basi disco satis dis- 

 tincto circumcinctum, uniloculare, ovulis 4 sessilibus instructum. Fructus ignotus. 



CHINA. Yunnan: Szemao, forests to south, alt. 1600 m., A. Henry (No. 

 12694, type; large climber, flowers yellowish white) ; same locality, eastern for- 

 ests, alt. 1600 m., A. Henry (No. 12622; large climber). 



This species is most closely related to P. paniculata Roxburgh, but differs in its 

 even smaller flowers, its unequal stamens, its pilose ovaries and in its distinct disk. 

 The fruits may show some other distinguishing character. 



3. Porana paniculata Roxburgh, PI. Coromand. III. 31, t. 235 (1819); Fl. Ind. 

 II. 39 (1824); ed. 2, I. 464 (1831). — Choisy in De Candolle, Prodr. IX. 436 

 (1845). — Kurz in Jour. Bot. XI. 137 (1873). — Clarke in Hooker f., Fl. Brit. Ind. 

 IV. 222 (1883). — Hooker f. in Bot. Mag. XLVIII. t. 7240 (1892). — Koorders, 

 Excursionsfl. Java, III. 114 (1912). 



Dinetus paniculatus Sweet, Hort. Brit. 289 (1827); ed. 2, 373 (1830). 



CHINA. Yunnan : Mengtsze, alt. 1500 m., A. Henry (No. 9489; large climber, 

 covering rocks, etc., white flowers in masses). 



INDIA. Kumaon : "The Bhabar," alt. 300 m., R. Strachey & J. E. Winter- 

 bottom {No. I). Punjab: " reg. trop.," T. Thomson. Central India: Malva, 

 plateau of Amarkdntak, January 21/24, 1856, Schlagintweit (No. 11859). Sik- 

 kim: "reg. temp. alt. 1-5000 ped.," J. D. Hooker. East Bengal: "Mont. 

 Khasia, reg. trop., alt. 3-5000 ped.," J. D. Hooker & Thomson. 



See the note under P. discifera and the key on p. 357. 



4. Porana sinensis Hemsley. See p. 355. 



5. Porana spectabilis Kurz in Jour. Bot. XL 136 (1873). — Clarke in Hooker f., 

 Fl. Brit. Ind. IV. 221 (1883). 



Porana speciosa Bentham in Bentham & Hooker, Gen. pi. II. 876 (sphalm.) 

 (1876). 



INDIA. Andaman Islands: "Baratang Island," December 30, 1903, Dr. 

 Prain's Collector (No. 8). Burma : in the tropical evergreen forests of Martaban, 

 in the Toukyeghat Valley, east of Tongu (type, ex Kurz). 



See the note under P. sinensis Hemsley and the key, p. 357. 



Subgen. 2. PSEUDODINETUS Schneider, n. subgen. — Descriptio in clavi 

 et subtus. 



