132 ^ FLORA OP MANILA 



Typhonium trilobatum (L.) Schott, a native of Ceylon with large, 

 deeply 3-lobed leaves, 10 to 20 cm long, and spathes 12 cm long or more, 

 its blade purplish and 5 to 7 cm wide has been cultivated in Manila, hut 

 I have seen no specimens. T. divaricatum Decne. (Fl. Filip. pi. SSO.), also 

 with 3-lobed leaves 4 to 6 cm long, and spathes somewhat similar to the 

 above is Occasionally cultivated. This species extends from India to Japan 

 southward to Malaya, introduced here. 



8. ALOCASIA Schott 



Small to very coarse herbs from fleshy comris, sometimes with a short 

 stout caudex. Leaves oblong to ovate, base deeply cordate, peltate or > 

 not, eiitire or variously lobed. • Spathe erect, peduncled, the tube ovoid, 

 the limb usually elongated, deciduous. Spadix shorter than the spathe, 

 the male and female flowers usually separated by interposed neuter ones. 

 Ovaries 1-celled; ovules few, basal, erect. Berries few-seeded. (Name 

 altered from Colocasia.) 



Species 25 or more, tropical Asia to Malaya, many now cultivated in 

 other countries for ornamental purposes, about 10 in the Philippines. 



1. Leaves peltate, the blades green above with white veins, often purple 



beneath _ 1. A. sanderiana 



1. Leaves not peltate. 



2. Leaves very deeply pinnately lobed, the lobes distant, oblong to oblong- 

 lanceolate 2. A. portei 



2. Leaves entire or at most undulate. 



3. Very coarse plants with stout stems and very large leaves 0.5 to 1.5 



m in length 3. A. indiea 



3. Smaller plants without distinct stems. 



4. Xeaves broadly ovate, 35 to 65 cm long; petioles mottled. 



4. A. zebrina 

 4. Leaves oblong to oblong-lanceolate, 15 to 25 cm long. 



5. A. heterophylla 



1. A. sanderiana Bull. 



A small or medium sized glabrous plant from underground rootstocks. 

 Leaves oblong-ovate to broadly lanceolate-ovate, acuminate, the base peltate,, 

 deeply lobed, 15 to 40 cm long, the margins rither deeply undulate-lobed, 

 the basal lobes rather narrow spreading; upper surface dark-green, the 

 nerves and sometimes the margins white, the lower surfaces usually 

 purple or tinged with purple. Peduncles erect, shorter than the leaves. 

 Spathes greenish, about 5 cm long. Spadix greenish-white, nearly as long 

 as the spathe. 



A very ornamental species occasionally cultivated for its striking leaves, 

 a native of Mindanao. Endemic. Frequently cultivated in Europe and 

 America. 



2. A. portei (Schott) Engl. & Becc. 



Stem' stout,- erect, usually less than 1 m high. Leaves green, oblong- 

 ovate in outline, up to 1 m in length, deeply pinnately lobed, the lobes 

 narrow, oblong to lanceolate-ovate, distant, the base deeply cordate, not 

 peltate, the basal lobes narrow, prominently lobed. Spathes peduncled, 

 the tube about 4 cm long, accrescent, the blade 20 cm long or more. 

 Staminate part of the spadix 4 to 5 cm long, cylindric, the appendage up 

 to 13 cm in length. 



