NO. 24 NEW SAPINDACEAE — RADLKOl 7 



the oleose-carnose aril, and the greenish embryo devoid of saponii 



ons cells (and perhaps also in its bisquamulose pel 



Key to 1 he Species 



Leaflets sine ,th on both sides, bright green. 1. />. costaricense. 



Leaflets minutely papillose and appressed pubescent beneath, dark 



sreen. 2 , />. elegans. 



1. DIPTERODENDRON COSTARICENSE Radlk., sp. nov. 



Arhor magna; folia bipinnata : foliola utrinque laevia praeter ner- 

 vum medianum supra puberulum glandulisque minutis adspersum 



glabra, saturate viridia. epidermidis paginae inferioris cellulis com- 

 pluribus (2-4-aggregatis) crystalla singula gerentibus; reliqua ut 



supra. 



Arhor 15-20 m. aha, fere a hasi ramosa. Rami juniores ( thyr- 

 sigeri) teretiusculi, sulcati, glabri vel apice pilosi, innovationibus 

 lannginosis, cortice laevi subfusco, adultiores teretes, lenticellis orbi- 

 cularibus longitudinaliter vel nitide cruciatim sulcatis ornati. Folia 

 bipinnata petiolo 8-20 cm. longo adjecto 30-70 cm. longa, 20-28 cm. 

 lata; pinnae 7-20 cm. longae, interstitiis 3-4.5 cm. longis; pinnnlae 

 (foliola) intermediae 1.5-3.5 cm. longae, 0.6-1 cm. latae. summae infi- 

 maeque minores, interstitiis 0.5-1 cm. longis. Thyrsi 8-15 cm. longi, 

 interstitiis inter ramulorum paria circ. 2 cm. longis, pedicellis 5-10 

 cm. longis. Capsula diametro 2.5-3 cm -> pericarpio (sicco) 2 mm. 

 crasso; semina 1. 5-1.8 cm. longa, 1 cm. crassa. 



Costa Rica: La Balsa de Rio Grande, Province of Alajuela, 

 young and mature fruits, June 2, 191 1. Pittier 3645 (Type, U. S. Nat. 

 Herb. No. 678704) ; El Coyolar, near Santo Domingo, June, 191 1, 

 coll. Werckle, Pittier 3681 (U. S. Nat. Herb. Nos. 678748-9), with 

 mature fruits, leaves partly discolored, yellowish green. 



2. DIPTERODENDRON ELEGANS Radlk. 



Dilodendron bipinnatum Radlk., var. elegans Radlk. in Mart I XIII, 



3, P- 597- 1900. 



Folia (sola visa, quae vero scrihenti mihi ad manus nou sunt) bi- 

 pinnata; foliola subtus minutim papillosa (papillis supra stomata 

 minuta conniventibus, stomatibus aliis majoribus interjectis), pilia 



