38 



Near Lakon. forming the greater part of some dry jungles, 

 300 m., Kerr, 973 ; Siam, Kurz. 

 Distr. Upper Burma. . 

 Lao name, Mai Hooak (ex Kerr), 



Oxytenanthera albociliata, Munro— F.B.I., vii. p. 401 ; Gamble, 

 Ann. Roy. Bot. Gard. Calc, vii. p. 70, t. 61. Gigantochloa albo- 

 ciliata, Kurz, For. Fl. Burma, ii. p. 555. 



Between Lakon and Phre, near Pang Pooey, 420 m., Kerr, 984 ; 

 Chieng Dao, in eng jungle, 390 m., Kerr, 1060. 



Distr. Burma. 



Lao name, Mai Pahng, Mai Bong Pah (ex Kerr). 



Oxytenanthera Hosseusii, Pilger — Hosseus, ii. p. 369. 

 Nakontai (ex Hosseus). 



Dendrocalamus Brandisii, Kurz — F.B.I., vii. p. 404 ; For. Fl. 

 Burma, ii. p. 560 ; Gamble, Ann. Roy. Bot. Gard. Calc., vii. 

 p. 81, t. 71. 



Chiengmai, 300 m., cultivated, Kerr, 891. 



Distr. Burma. 



Lao name, Mai Sang Yen (ex Kerr). 



Dendrocalamus membranaceus, Munro — F.B.I., vii. p. 404 ; For. 

 Fl. Burma, ii. p. 560 ; Gamble, Ann. Roy. Bot. Gard. Calc., vii. 

 p. 81, t. 71. 



Between Lakon and Phre, near Ban Meh Tah, on sides of 

 limestone ravines, 300 m., Kerr, 996. 



Distr. Burma. 



Lao name, Mai Sang (ex Kerr). 



Dendrocalamus nudus, Pilger — Hosseus, ii. p. 369. 

 Chiengmai, 300 m., Hosseus, 290«. 



GYMNOSPERMAE. 



Cycadaceae. 



Cycas immersa, Craib, sp. n., a C. pectinata, Griff., et C. siamensi, 

 Miq., quibus affinis, costa foliolorum supra immersa haud prominente 

 recedit. 



Truncus erectus, ad 90 cm. altus (ex Kerr). Folia circiter 70 cm. 

 longa, petiolo circiter 19 cm. longo superne lateraliter spinoso 

 suffulta ; rachis subtus inferne conspicue carinata, apicem versus 

 convexa, plus minusve glabrescens, supra plus minus ve distincte 

 carinata ; foliola utrinque numerosa, lineari-lanceolata, parum 

 falcata, apice pungentia, ad 15 cm. longa, 7 mm. lata, rigida, supra 

 glabra, subtus minute parce brunneo-pubescentia, costa supra 

 immersa subtus valde prominente. Carpophylla ambitu obovata 

 6*5-10*5 cm. longa, ad 5 cm. lata, tota, ovulis exceptis, hirsuto- 

 tomentosa, ochrascentia, parte inferiore pedicellum simulante ad 

 fere 4 cm. longa superne constricta ibique utrinque ovulo solitario 

 instructa, parte superiore laminam acuminatam pectinato- 

 pinnatifidam simulante ad 6 cm. longa et 5 cm. lata. Strobili <5 

 ambitu oblongi, ad 21 cm. longi et 8 cm. diametro, pedunculo com- 

 muni ad 5 cm. longo basi nudo superne squamis obtecto suffulti ; 



