AROIDEZ. 435 
38. Anthurium spectabile, Schott in Cster. Bot. Zeitschr. 1858, p. 181, et 
Prodr. Aroid. p. 469; Engler in DC. Monogr. Phanerog. ii. p. 144; Cirst. Preecurs. FI. 
Centro-Am. p. 69. 
Costa Rica, Volcan de Turrialba (Wendland). 
39. Anthurium subcordatum, Schott in CEster. Bot. Zeitschr. 1858, p. 181, et 
Prodr. Aroid. p. 489; Engler in DC. Monogr. Phanerog. ii. p. 156. 
GuaTeMALA (Wendland). 
40. Anthurium subsignatum, Schott in Bonplandia, ix. p. 368; Engler in 
DC. Monogr. Phanerog. ii. p. 191. 
Costa Rica, Pedregal (Wendland). Cultivated specimens in the Kew Herbarium. 
41. Anthurium tapinostachyum, Schott in GEster. Bot. Zeitschr. 1858, p. 180, 
et Prodr. Aroid. p. 445; Cirst. Preecurs. Fl. Centro-Am. p. 67; Engler in DC. Monogr. 
Phanerog. ii. p. 115. 
Costa Rica, near Candelaria (Hoffmann), Naranjo (Grsted). 
42. Anthurium umbrosum, Licbm. Om Mexicos Aroideer, p. 11; Schott, 
Prodr. Aroid. p. 150; Engler in DC. Monogr. Phanerog. p. 170. 
Soura Mexico, Cuesta de Teotalcingo, Oaxaca, 5000 feet (Liebmann). 
43. Anthurium wendlandii, Schott in CEster. Bot. Zeitschr. 1858, p- 182, et 
Prodr. Aroid. p. 544; Cirst. Precurs. Fl. Centro-Am. p.72; Engler in DC. Prodr. 
Aroid. p. 198. 
Costa Rica, San Miguel ( Wendland). 
There are several unnamed and probably, in part at least, undescribed species of 
Anthurium in the Kew Herbarium, chiefly from Chontales in Nicaragua. 
Order CLV. LEMNACE. 
Lemnacee, Benth. et Hook. Gen. Pl. iii. p. 1000; Hegelm. Die Lemnaceen. 
Very small, or even minute, floating or submerged aquatic herbs, spread over all 
temperate and tropical regions. Hegelmaier distinguishes three genera, namely 
Wolffia, Lemna, and Spirodela, while Bentham and Hooker treat the two last as 
sections of one. There are twenty-one species. 
1. LEMNA. 
Lemna, Linn. Gen. Plant. n. 1038; Benth. et Hook. Gen. Plant. iii. p. 1001. 
Nine species, inhabiting freshwater in all temperate and tropical regions. 
3&2 
