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TAB. 66. PENTAMERIS THOUARSH.
Pemameris Thuarii Beauv. Agrost. p. t. i8. f. 8.
Triselutn villosum Pers. Synop,. i. p. gy?, Sieb. herb. cap.,
Avena triseta Thunb. Prod. p. 22?
Crescit in Promontorio bona; s
Culmi teretes, Ixves, glabri, Qotlosi^ undine vaginis foliorum arete involuti; ramali iu
axiliis vagioarum breves, sleriles. Folia anguste Eneaiia, sulcalo-nervosa, involuta, subfalcatocurvata,
rigida, exterue glabra, interne villosiuscolo-pubescentia, margine scabra, 9-1 a-poUicaria,
vix ] i lineam lata. Vaginai uervo<a»,conipressLuscu]a3, scabrlusculie, internodiis longiores, bipollicares;
juoiores margine villosce. Ligula : margo obsoletus, pilis sericeis i-igidis albidis dense
obsitui. Panicula ramosa, subsexpoDicarisj ramis sublastigiatis, infimis subtpiaternis, reliquis
geminis, iriangularibus, glabris. Spicukelonge pedicellata;, bifiors;; pedicellisiUilbrraibus ramulisque
scabris. Flores hermaphroditi, fructiferi e glumis decidentes; inferior sessilis; superioi'
pedicellatus, ad basiin interiorem rudimento stipitiformi floris teilii iostnictus, Gluma} duie,
ovato-lanceokta3, acutato-subulata;, uniners'ice, carinat®, nieml)ranacex, glabra, llores duplo
superantes, fuscescentes, persistentes; inferior paulo brevior et remota. Pale® duaì, membranaceag,
externa molliter pilosaj; inferior ovato-elliptica, superne g-nervia, concava, apice
bifida, inter lobos aristata; arista longissinia, persistens, ini'erne complanata et spiraliter torta,
insco-njgra, superne recta, scabriuscula; lobi acuti, ad latus interius aristali; aristis rectis, scàbris,
subsecpiaiibus, arista media multo brevioribus. Palea superior brevior, elliptica, concava,
dorso bicarinata, apice emai'ginalo-biloba et ciliata, quadrinervia, nervis intemiediis obsoletioribus,
saperne evanescentibns. SijuamuJaì duce, subcimeato-dolabriformes, emargioato-bi-ti'ilobse,
membranacea, apice s®pe pilis duobus instmctse, basi stipiti ovarii adnalEe, Filamenta
tria, capillacea, basi stipilis ovariiferi inserta. Andieras.... Ovarium fecundatum stipitatiun,
turbiuatum, glabrum, disco crasso orbiculalo uiubonato glabro temiinatum. Stigmatis piiì hyalini,
ramosi?. Fructus ellipticus, basi rotundatus et brevissime stipitatus, apice truncatus, teretiusculus,
paleis ai'cte obtectus, liber, fusco-uiger pnuctulato-scabratus, nitidulus, interne ad
basim sulco exaratus. Pericarpium ci'ustaceum. Seinen liberum, fuscesceus, glabrum, basi
ailixum?, superne oblile bemispha;ricum, inferno ina:qualiter triguetrimi, latus ubi embryo
situs majus. Membrana propria seminis membranacea, tenuis, fuscescens, albumini et embryoni
adbairens. Albiunen fai'inaceum, albmn. Embryo semine triplo brevior, extrarius, sul} orbicularis,
scutelliformis. Corculiuu in sulco cotyledonis locatum ipsoque brevius, oblongo-teretiusculum,
apice obtiisum, basi acutmn, medio constrictum ibique dorso alllxum.
Specimen nios descriptum fructilermn; vidi in altero specimine ilorifei o Sieberiano, utse<juitur
: Antheraì lineares, utrinque bifida;, biloculares, secundum totani longitudinem dehiscentes.
Ovarimn oblongum, apice inter stylos tuberculatum. Styli duo, terminales, distantes, elongati.
Stigmata piumosa; pilissimplicibus, gbtuse denticuLitis, hyalinis.
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