70 FLORA OP TASMANIA. [Mamnea. 
broad, with a narrow free edge. Stigmas three. — New Zealand specimens are apetalous, but otherwise undistin- 
guishable from Tasmanian. 
Gen. II. ORYPTANDRA, Sm. 
Mores bracteolati, congesti. Calgcis tubus conicus, campanulatus v. cyluidricus, ovario accretus ; 
limbi lobis 5, acutis, intus carinatis. Petala h, parva, cucullata, persistentia. Stamina 5, petalis inclusa. 
Ovarium semi-inferum, apice villosum, 3-loculare, ovulis loculis solitariis erectis. Stylus simplex ; stigmate 
simplici v. 3-lobo. Capsula calyce et corolla persistente terminata, 3-locularis, 3-cocca, coccis indehiscentibus 
v. 2-valvibus. Semen erectum, oblongum, obtuse trigono-compressum ; testa hevi, coriacea. Albumen 
carnosum. Cotyledones magnse, oblongse ; radicula brevi, infera.— Suffrutices plerumque parvifolii ; foliis 
glabris, pubescenti&us lanatisve; floribus solitariis aggregatisve, squamis imbricatis ealyculatis. 
I have had great difficulty in disposing of the species of the curious and difficult tribe of Australian Rhamnece, 
to which Oryptandra, Trymalium, Spyridium, and Pomaderris all belong ; for though placed under two sections by 
Reisseker, these are all undoubtedly closely-allied genera. In the first place, I have retained under Pomaderris only 
those species which agree with the original P. elliptica, in having no bracts to the flowers, stamens longer than the 
petals, and the cocci indehiscent, but with a large foramen on their ventral face. If Trymalium of Fenzl is to be 
kept distinct from these, it may be distinguished by the indehiscent imperforate cocci, for I cannot find any small 
foramen such as is alluded to by that careful author, except that at the base of the coccus, where it is inserted 
into the cavity of the calyx ; the cocci are indeed perfectly similar to those of most Oryptandra. Under Oryptandra 
I place a number of plants differing much in habit and floral characters, but which all agree in having bracteate 
flowers, stamens concealed within the petals, and imperforate cocci that either dehisce by the ventral suture, or, like 
those of Trymalium, are altogether imperforate and indehiscent. Spyridium (Fcnzl) I include in the same genus, its 
cocci being indehiscent, floweTs bracteate, and stamens concealed in the petals, and there being no other character by 
which it may be distinguished from many other Oryptandra. The disc is as variable in this genus as in Trymalium 
and Pomaderris, being in some cases (C. obovata) extremely thick, swollen, and completely shutting up the throat 
of the calyx, allowing a passage for the style only ; in others, again, the vertex of the ovary projects beyond the 
Woolly or tomentose shrubs, with alternate stipulate leaves and minute flowers, generally densely aggregated 
into capitula formed of many cymes with short branches.— Flowers surrounded with brown chartaceous bracts, 
which are reduced stipules of undeveloped leaves. Calyx-tube villous, tomentose, or pubescent, campanulate, tu- 
bular, funnel-shaped, or broadly obconic; lobes five, keeled inside. Petals five, minute, concave, sessile or clawed. 
Stamens small, included within the petals ; filaments incurved. Disc very variable in size and relative position. 
Ovary half-inferior, its apex generally villous and exposed beyond the disc, three-celled; cells with one erect ovule. 
Style short or long. Stigma three-lobed. Fruit obovoid, surrounded with the membranous or crustaceous semi- 
adherent calyx, and persistent petals and stamens, of three cocci, which separate from one another and the calyx. 
Cocci dorsally convex and compressed, ventral surface slightly prominent and keeled, indehiscent or dehiscing down 
the mesial line internally, membranous, coriaceous, or crustaceous. Seed one, erect, compressed, lenticular; 
testa smooth, crustaceous or coriaceous. Arillus short, lobed (rarely none ?). Albumen fleshy. Embryo in the 
axis of the albumen. Cotyledons large, parallel, oblong; radicle short. (Name from k P vwtos, hidden, and avnp, a 
stamen ; in allusion to the concealed stamens.) 
The subgenera of Oryptandra which I have proposed cannot be considered established till all the Australian 
species (of which there are very many) are examined. They are — 
\ I. Flower* aggregated in abbreviated cymes. Calyx broadly obconic ; tube not produced much, if at all, beyond 
the ovary. Cocci coriaceous or membranous, indehiscent, or perhaps dehiscing in a few species along the 
ventral suture.— To this belong the majority of the Tasmanian species : it is indeed quite a Southern form. 
About twenty species are known, five or six from South-west, eight or ten from South-east Australia. This 
