168 GESNERIACE&. [DIDYMOCARPUSV 



deeply in flexed, at length recurved ; ovules many, crowded along 

 the margins. Fruit a loculicidally 2-valved or subfollicular capsule ; 

 valves not twisted before opening, their edges revolute and concealing 

 the seeds. Seeds ellipsoid, small, smooth, minutely reticulate. 

 Species about 90, in India, Malaya, China, Trop. Africa, Madagascar 

 and Australia. 



Stems distinct, leaf solitary. Plant minute . 1. D.pygmcea. 

 Stems none or very short ; leaves more than 

 one, usually all radical . . . . 2. D. pedicellata. 



1. D. pygmaea, C. B. Clarke in F. B. I. iv, 345 ; Prain Beng. PI. 783. 



A small delicate pubescent herb. Stems filiform, ^-2 in. long. Leaf solitary, 

 sessile or nearly so, membranous, 1-2 in. long, obliquely ovate or lanceo- 

 late, obtuse at both end s ; margins sinuate, scarcely crenate. Pedicels 

 few, about 5 in. long, fascicled in the leaf -axil, bracts minute or none. 

 Calyx T -^ in. long, densely pilose with white hairs ; lobes linear, 

 slightly enlarged in fruit. Corolla -in. long, tubular, shortly 5-lobed. 

 Stamens 2, fertile ; staminodes 2, linear, f the length of the fertile 

 filaments. Ovary and style villous. Capsule ^-f in. long. 



Found originally by Vicary close to a waterfall near Mhowganj in the 

 Eewah district of C. India, and just within the south-east border 

 of the area of this flora. DISTIUB. Chota Nagpur (C. B. Clarke), 

 Nimar district of C. Prov. (Duthie). This interesting little plant has 

 probably been often overlooked in other localities and should be searched 

 for on wet rocks in the vicinity of waterfalls, especially in the districts 

 of Mirzapur and Bundelkhand. In its size and general habit this plant 

 may be compared with Platystemma violoides which it greatly resembles 

 in its filiform stems, each of which bears a solitary leaf. The latter 

 plant inhabits the W. Himalaya at elevations between 6 and 9,000 ft., 

 and flourishes within the spray of dripping rocks. 



2. D. pedicellata, R. Br. in Benn. Fl. Jav. Rar. 118 ; F. B. I. iv, 345. 



D. macrophylla, Wall. Cat. 784 (in part} ; Royle III. 294, t. 70, f. 1. 



Stems none or very short, innovations scabrous-pub erulous. Leaves 

 usually all radical, 3-3 in. diarn., roundly ovate, crenate-serrate, gland- 

 ular-punctate. Pedicels longer than the calyx ; bracts about 4 in, 

 often shortly connate. Calyx funnel-shaped, about 5 in. long ; lobes 

 shallow, rounded. Corolla purple, nearly 1 in. long. Capsule 1-1 1 in. 

 long ; its stalk slender, longer than the persistent calyx. 



IDehra Dun, in damp shady ravines. Flowers in Aug. DISTBIB. Sub- 

 tropical W. Himalaya from Chamba to Kumaon, up to 5,500 ft. 



2. RHYNCHOGLOSSUM, Blume; Fl. Brit. Ind. iv, 367. 



Herbs, glabroos cr minutely pubescent. Leaves alternate, elliptic, 

 acuminate, unequal*sided, cordate on one iide of the unequal base, 

 subentire or sinuate, Eacemes long, many-flowered ; bracts none, 



