252 OCTANORIA. MONOGYNIA. 



Species. 1. M.ferrvginsa. In North California. 2.glQbu- 

 laris? Obs. Brandies subverticillate. Leaves obovate-lan- 

 ceolate, acute, petioles and margin as well as the young-er 

 branches piloSe, under s'de of t lie leaf glaucous, covere\l 

 with a minute pubescence, upper side somewhat scabrous; 

 under side of the midiiL lined with about eight to ten 

 distant tubercles, each terminated by an appressed pa- 

 leaceous process, and respectively situated near the base 

 of each pair of lateral nerves. Flowers terminally fas- 

 ciculated, peduncles glandularly pubescent, an inch and 

 a half long. Calix crenate, minute, denatures 4, ciliate, 

 retuse. Capsule cylindric-ovate, sliort, 4-valved, coria- 

 ctous, rtcej)tacle with 4 alated angles, each angle semi- 

 niferous and embraced by the 2 inflected margins of each 

 valve. Seeds minute, linear-oblong, acute. 3. empetrifor- 

 mis. 4. cu-)it!ea. These 2 last resemble Erica. No. 4. 

 ■was the Erica acn/lea of Wdldcnow. — There is but an- 

 other genuine species of this genus, which is tlie JI. poli- 

 folia of Jussieu, in the nortjj of Kurope, :dmo.st peculiar to 

 the mountains of the west of Ireland, extending also into 

 France and I'ortugal. 



566. ACER. L. (Maple.) 



Flowers mostly polygamous. — Cali.x about 5- 

 cleft. Petals 5, or none. Samarct 2, sometimes 

 S, alated, united at the base, by abortion i- 

 secded. 



Large or small trees; leaves palmately lobed (in .-?. 

 A'egt/ndo, simply or doubly pseudo lernate); fiowers lateral 

 and terminal, subcorymbose, racemose, or aggregate, and 

 then subtended by an imljricaled gemmuceous involucrum, 

 with the pedicells l-flowered. Calix sometimes petaloid. 



Species. 1. A. i^ibrum- Obs. Dioicous; calix peialoid 

 red, 8 to 12 parted; stamens about 5, in the male exsert- 

 ed, having a globular gland at the base of each; segments 

 of the hermaphrodite calix shorter and broader, stamens 

 also shorter. Styles 2, long, recurved and ])ubescent on 

 the upper surface. Flowers aggregated in 5s, sun oundej 

 by a gemmaceous involucrum. 2. dasycarpum. Obs. Dioi- 

 cous; hermaphrodite calix membranaceous, nearly entiie, 

 or with 5 crenatures; petals none; stamina mostly 5, rarely 

 4 or 6. Germ lanuginous, 4-seeded; no glands at tl)e base 

 of the corolla or germ, as in A. mbrimi; gemmace9us clus- 

 ters about 5-flo\vered, mternal base of the involucrum 

 woolly. Hae. Westward into Upper Louisiaiia. — Thes-e 

 2, and several others, are scarcely congeners with the 



