Alectryon. 987 



tomentellis); foliolorum nervus medianus subtus glaber vel 

 pilis subsetaceis minutis adpressis uti pagina inferior tota 

 adspersus, epidermis non mucigera. 



a. Foliola elliptica, obtusa vel subacuta, subsessilia, petiolulis 



brevissimis incrassato-tumidis insidentia 23. A. coriaceus. 



b. Foliola oblonga, rarius elliptica, acuta, petiolulis longius- 



culis basi incrassatis suffulta . 24. A. semicinereus. 



B. Fructus breviter conicus vel subglobosus, acutus vel obtusus, 

 coccis per totam latitudinem connatis (tenere puberulis); 

 foliolorum nervus medianus subtus pilis crispulis puberulus, 

 epidermis mucigera. 



a. Endocarpium pilosiusculum ; foliola obovata vel oblonga 



obtusa, saepius emarginata, rarius subacuta, subsessilia 25. A. connatus. 



b. Endocarpium glaberrimum; foliola elliptico- vel oblongo- 

 lanceolata, subacuminata, in petiolulos basi tumidos 



attenuata (sp. novo-guineensis) 26. A. affinis. 



Sect. I. Mahoe (Hillebrand) Radlk. 

 1. A. macrococcus Radlk. in Sitzungsber. bayer. Akad. XX. (1890) 258, in Engl. 

 u. Prantl, Nat. Pflanzenfam. III. 5. (1895) 333 et Nachtr. III. (1907) 205; Jos. F. Rock 

 in Report Hawaii Board Agricult. and Forestry (1910) 81 1. 19 (ic. photogr.) et in 

 Indig. Trees Hawaiian Isl. (1913) 277 1. 107, 108; Radlk. et Rock in Bot. Bull. 1 Hawaii 

 Bd. Agric. and Forest. (1911) 3 1. 1. — Mahoe, gen. nov.? Hillebrand, Fl. Hawai. Isl. 

 (1888) 86. - Dodonaea sp. Drake del Gast. 111. Fl. Ins. Mar. Pacif. VI. (1890) 144 in 

 obs. ad Dodonaeam viscosam. — Vulgo: Mahoe (i. e. »Gemini« ex Rock I.e. 1913, 

 »verisimiliter ob fructus interdum bicoecos«) in Molokai t. Hillebrand 1. c. (quo nomine 

 in Novo-Zealandia Melicytus ramiflorus Forst, salutatur t. Kirk, Forest Fl. N.-Zeal. 

 [1889] 3); Alalaa Hua t. Rock, Hawaiian Plant Names in Bot. Bull. 2 Hawaii Bd. 

 Agric. and Forest. (1913) 4 (nomen praeterit. in Rock, Indig. Trees). — Arbor medioeris; 

 rami teretes, rubro-fusci, glabrati, juveniles striati cum foliolis novellis tomento adpresso 

 sericeo flavescenti-cano induti; folia 2 — 5-juga; foliola magna, opposita, elliptica vel 

 subovata, utrinque obtusa vel apice acuminata (t. Hillebrand), petiolulata, integer- 

 rima, undulata, coriaceo-chartacea, nervis lateralibus sat approximatis obliquis subtus 

 ut et nervo mediano valido dilatato supra piano prominentibus, glabra (vel subtus 

 t. Hillebrand laxe tomentosa), utrinque nitidula, sicca e viridi subfusca, epidermide 

 non mucigera paginae superioris .hypodermate suffulta; paniculae axillares, basi 

 ramosae, parvae, tomentosae; flores ($ tantum visi) breviter pedicellati, bracteis 

 ovatis acutis suffulti; calyx 5-lobus, tomentosus, intus adpresse pilosus; petala nulla; 

 discus tomentosus; stamina (imperfecta) 6—8, brevia, intra disci marginem in foveolis 

 circa pistillum inserta, filamentis hirsutis, antheris (effoetis) glabris rubris; pistillum 

 late obovatum 2-locülare, vel saepius dimidiatum semiobovatum 1-loculare, in stipitem 

 brevem attenuatum, stylo brevissimo apiculatum, tomentosum; fructus 2- vel plerum- 

 que 1-coccus, adhaerente loculo abortivo; coecus evolutus globosus, pro genere maximus, 

 corticosus, glabratus, fissuris irregulariter areolatus, brunneus, intus pilis setaeeis 

 singulis adspersus (sarcocarpio scarlatino eduli, ut et seminis nucleo, t. Rock); seminis 

 testa crustacea, brunnea, splendens. 



Arbor 20—30 pedes alta. Folia petiolo circ. 10 cm longo adjeeto 40 cm et ultra 

 longa; foliola cum petiolulis 1 — 1,5 cm longis circ. 20 cm longa, 9 cm lata. Paniculae 

 10 cm et ultra longae. Fructus coecus diametro 2,5 — 5 cm, pericarpio 1,5 — 4 mm crasso. 



In insulis Hawaii Oahu, Molokai, Maui et Kauai: Hillebrand! (Oahu, on the 

 S. W. slope of Mount Kaala, left branch of Makaleha; Molokai, on the pali of Kalau- 

 papa; circ. 1870, fr.; Hb. Kew., Berol.); J.F.Rock n. 8642! (Maui, in declivibus 

 montis Haleakala meridiem versus in loco massa vulcania (lava) obdueto, Auahi dicto, 



