124 CONVOLVULACE^E. 



trip to the island. It was found twining with profusion of white flowers 

 on a large trunk of a species of (if I am not mistaken) Quercus. Another 

 specimen of the plant with f raits was collected by Mr. T. Doi in the central 

 part of the island. It is stated by BENTHAM that the species has a 1- 

 celled-ovary, while my plant has, as I have assured several times, distinctly 

 4 celled-ovary, each cell having 1- ovule. The Formosan plant has much 

 longer panicles than that described by BENTHAM. The shape of the embryo 

 is very striking. The cotyledons are very irregularly loted and plicated, bent 

 accumbently and touch closely to the very short radicle. The relative posi- 

 tion of the caudicle and radicle is also very peculiar. The former lies not 

 at the foot of, but on the side of the latter. It is, therefore, conceivable 

 that the embryo describes a semi-circle on itself, and brings the caudicle 

 from the foot of the radicle to the side of the latter. 



Cuscuta formosana HAYATA sp. nov. Planta volubilis aphylla, ramis 

 gracilibus, glabris, teretibus, 1 mm. in diametro sectionis, pauci-striatis, paucis- 

 sime lenticellis elevatis notatis. Flores spicato-glornerati, spicis sessilibus 1| cm. 

 longis 5-6-floratis, rhachibus teretibus crassiusculis 1 mm. in sectione. Flores 

 sub-sessiles, 1-bracteati, bracteis oblongis obtusis valde concavis, 1 1 mm. 

 longis, pedicellis brevissimis, crassis, 1 mm. longis. Sepala 5 basi plus minus 

 connata, ovata apice rotundata, basi latissima non contracta, 2 mm. longa, 

 basi 1| mm. lata, glabra, valde concava, imbricata. Corolla tubulosa, cum 

 lobis 7 mm. longa, tulx> cylindrico, utrinque glabro 6 mm. loiigo, 5-nervato, 

 fauce plus minus contracto, lobis 5 glabris patentibus reflexis, triangularibus, 1- 

 1-J mm. longis, totiusque latis, apice obtusis margine minute obscureque 

 denticulatis. Squam?e intra corollam 5, staminibus oppositse, tubi corolla 

 dimiditim sequantes, basi tubi dorso centre deorsum affixse, margine liberse, 

 spathulatce 3 mm. longse, mm. latae, apice rotundatse margine sursum multo- 

 deorsum pauce-glanduloso-fimbriatse. Stamina 5, fauce tubi (vel ad apicem 

 tubi) inserta, sessilia, cum lobis corollse alterna, antheris ovatis apice emar- 

 giuatis, basi lobatis, 1,^ - Ij mm. longis, | mm. latis, connecti vis dorso elevatis, 

 oblongis, aiitheno dimidium sequaiitibus. Ovarium globosum 1^ mm. longum, 

 apice ad stylum abeuns, 2-loculare, loculis 2-ovulatis, ovulis subglobosis e basi 

 axis asceudeutibus, auatropis, raphi dorsali, stylo 2J mm. longo, columnari, 



