20 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. I 



Kota-kota District: Kota-kota, grass country, herb, flowers purple, 1500 m., 

 Aug. 7, 1946, G. C. Shortridge in Brass 17396. Widely spread through the tropics. 



Hygrophila cataractae S. Moore, Jour. Linn. Soc. Bot. 37: 459. 1906. 



Kota-kota District: Chia area, gregarious on muddy edges of waterholes, herb 

 30-50 cm. high, ascending, flowers white, the lower lip faintly mottled with pur- 

 ple, 480 m., Sept. 3, 1946, 17513; ibid., gregarious on moist muddy banks of water- 

 holes, ascending herb, 50-70 cm. high, flowers white, the lower lip mottled with 

 purple, 480 m., Sept. 5, 1946, 17534. Hitherto known only from the Victoria Falls. 



Hygrophila spiciformis Lindau, Bot. Jahrb. 20: 5. 1894. 



Kasungu District: Kasungu, common in open sandy bed of stream, herb about 

 30 cm. high, ascending, viscid, 1000 m., Aug. 28, 1946, 17446. Abyssinia, Uganda, 

 south to S. Rhodesia and Portuguese East Africa; new to Nyasaland. 



Brillantaisia pubescens T. Anders, ex Oliv. Trans. Linn. Soc. 29: 125. 1875. 



Brill ant ai si a anomala Lindau in Engl. Pflanzenw. Ost-Afr. C: 366. 1895. 



Kasungu District: Kasungu, gregarious on dry shady banks of a stream, herb 

 40-60 cm. high, viscid, aromatic, ascending or suberect, flowers purple, 1000 m., 

 Aug. 27, 1946, 17442. Chikwawa District: Lower Mwanza River, plentiful in bushy 

 dry forest, herb 60-80 cm. high, viscid, aromatic, flower pale purple, 180 m., 

 Oct. 4, 1946, 17942. Nyasaland, Tanganyika, and Portuguese East Africa. 



Brillantaisia anomala Lindau appears to be a late-season state of B. pubescens 

 in which the leaves have all fallen and the flowers are relatively small and most 

 probably cleistogamous. Brass 17942 represents this state. 



Brillantaisia oligantha Milne-Redhead, sp. nov. 



Proxima est ut videtur B. debili Burkill, sed statura et foliis majore, caulibus 

 et foliis pubescentibus, staminodiis glabris facile distinguenda. 



Herba perennis usque 6 dm. alta. Caules obscure quadrangulares, haud alati, 

 superne pilis albis usque 3 mm. longis patentibus, pilis bre'vioribus glanduloso- 

 capitatis et pilis brevissimis reflexis parce vestiti, inferne glabrescentes, cysto- 

 lithis densiuscule instructi. Folii lamina ovata, apice acuta vel leviter acuminata, 

 basi cuneata in petiolum decurrens, usque 16 cm. longa et 9.5 cm. lata, margine 

 obscure crenulata, supra pilis paucis brevibus ad nervos parce dispersis, subtus 

 praesertim ad nervos puberula, utrinque cystolithis instructa; costa et nervi 

 laterales utraque pagina 6-8, leviter arcuata vel nervi inferiores costam versus 

 plus minusve recti; petiolus usque 10 cm. longus, superne lamina decurrente 

 alatus, basin versus pilis albis patentibus et pilis glandulo-capitatis vestitus. 

 Cywcze^paucae, ex axillis foliorum superiorum valde reductorum ortae, 3-4-florae. 

 Pedunculus patens vel adscendens, 2.5-3.5 cm. longus, pilis albis longis, pilis 

 brevioribus glandulo-capitatis et pilis brevissimis densiuscule vestitus. Bracteae 

 ovatae vel ellipticae, plus minusve petiolatae, inferiores circiter 8 mm. longae, 

 superiores minores. Calyx profunde lobatus; tubus vix 2 mm. longus; lobus posti- 

 cus quam alteris leviter longior et latior; lobi ligulati, circiter 7 mm. longi, apice 

 obtusiusculi, extra pilis glandulo-capitatis dense induti, intus glabri. Corolla 

 circiter 2.5 cm. longa; tubus inferne cylindricus, superne inflatus, circiter 1.1 cm. 

 longus; labium anticum circiter 1.3 cm. longum et 1.2 cm. latum, apice trilobaium; 

 lobi subaequales, circiter 4 mm. longum et 3 mm. latum, apice rotundatum; labium 

 posticum arcuatum, cucuilatum, apice bilobatum; corolla extra breviter hirsuta et 

 minute glandulosa intus medium versus labii antici pilis longis septatis instructa, 

 cetera glabra. Stamina 2, in labio postico arcuata; filamenta circiter 12 mm. longa, 

 superne glabra, basi supra staminodia breviter hirsuta; antherae 3 mm. longae; 

 staminodia minutissima, vix 1 mm. longa, glabra. Ovarium glabrum, 3 mm. longum; 



