FRESHWATER HTDROCHARTm^^E 01' AT'BTCA. 239 



BOOTTIA. 



B. cRAssiFOLiA, n. sp. Ehizoma crassum | unciam longum, 

 oblique descendens radices multas emittens, squamis ovatis dense 

 tectum ; folia ligulata lorata obtusa, basi in petiolum attenuata, 

 carnoso-subcoriacea rigida, obscure virentia, n-T-nervia, 19 uncias 

 longa, 2-3 uncias lata, marginibus crispulis ; seapi 15-unciales ; 

 spathasubcyliudricatubulosa, 7-canaliculata, basi pauUo ampliata, 

 subcompressa, utrinque alata sex-costata, dentibus brevibus obtu- 

 sissimia ; sepala viridia, | uuelain longa, | lata, lanceolata obtusa ; 

 petala flava. 



Augola. 



MumpuUa 



LopoUo. Flores et fructus Aprili, fructus etiam Octobri. Wei- 

 wifsch, no, 6470 ! Herb. Brit. Mus. 



The stout rhizome of this plant is covered with close-set 

 broad and blunt sheathing-leaves, and descends somewhat 

 obliquely into the mud ; the leaves are very long and stiff, resem- 

 bling to some extent the fronds of a Laminaria, The species is 

 somewhat closely allied to B. scahra, Benth., but has not the 

 peculiar scabridity of that species. 



B. SCABRA, Benth, et HooJc. f. Gen. PI. iii. p. 454. — Ottelia 

 scabra, BaJcer^ T^^ans. Linn. Soc. xxix. 151. — Mogren el bahr, 

 Gazelle Biyer, SclitceinfurtJi 1121 ! Speke Sf Grant ! Herb, Kew. 



B. ABTssiNiCA, n, sp. Khizoma crassum, submersum, unciale, 

 radices copiosas longas emittens ; folia plura tenuia lanceolata 

 petiolata obtusa elongata, 15 uncias longa, 1| lata ; scupi crast^i 

 debiles 9-unciales ; spatha oblonga elliptica, apice vix attenuata, 

 2 uncias longa, circiter ^ lata ; flores in spatha duo ; sepala 

 lanceolata obtusa coriacea, | unciam longa, g lata ; petala flavida 

 visa baud multo sepala superantia. 



Abyssinia. Zana prope Carrata, Dec. 1863. Schimper, iter re- 

 centius, no. 1452 ! Herb. Brit. Mus. 



The long, narrow, thin leaves, not unlike those of Ottelia uIvcb- 

 folia^ and the straight elliptical spathe not tapering to the apex, but 

 almost of the same diameter throughout its length, sufficiently 

 distinguish this plant. The rhizome, too, is not covered with 

 large scale-leaves, as in _S. crassifolia, but seems to resemble that 

 of 0. 2>Ianf apnea, and is apparently deeply seated in the mud in 

 its native haunts. The flowers are hardly open in the only 

 specimen known to me, and the neck of the perianth barely 

 projects out of the mouth of the spathe. 



