分枝

Unlike a leaf, a cladode has buds on its surface.

但节与节间明显，节上能分枝，生叶和开花。

Stem succulent, simple or divaricately branched from middle, lower nodes swollen, naked.

茎肉质，或中间分枝，下部节膨胀，裸露。

Stem conspicuously striate or tetragonous, robust, succulent, simple or branched in upper part.

茎显著具条纹或4棱，粗壮，肉质，或分枝在上半部分。

Caudex branched, erect, to 2 cm in diam.Caudex leaves scalelike, triangular to subtriangular.

块根分枝，直立，在2厘米直径块根离开鳞片状，到近三角形三角形。

Herbs annual or biennial.Root stout, tuberlike, and napiform or fusiform, or branched and not tuberlike.

年生或二年生草本根粗壮，管状，和芜菁状或纺锤形，或分枝而不管状。

Basal leaves decussate; middle stem leaves opposite; distal stem leaves alternate; Inflorescence paniculiform with cymose branches.

基生叶交互对生；中间茎生叶对生；上部茎生叶互生；花序圆锥花序状具聚伞状分枝。

The characteristic of hyphae are regular width and septation with typical branching in acute angle (about 45 degrees) in PAS stain.

病理切片PAS色清楚可见麴菌菌丝，其具有分隔，且分枝呈锐角状，约45度角，为其特徵。

Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.

卷须不分枝或二叉。通常花序多歧聚伞花序。种子椭圆形，倒卵球形椭圆形，或倒三角形，平滑表面，具皱褶，或具瘤状突起或肋。

Evolution is regarded as a branching process, whereby populations are altered over time and may speciate into separate branches, hybridize together, or terminate by extinction.

进化被视为个分枝过程；随着时间推移，种群发生改变，种群也可能进化成为分枝，也可能相互杂交或灭绝终止。

A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product.

从雄甾二酮转化产生菌偶发分枝杆菌MF2出发,紫外诱变结合平板筛选,获得株主要转化生产睾酮突变株TS-N-121。

Stems caespitose, simple or many branched, 60-150 cm tall, ca. 1 cm in diam., antrorsely setulose, armed with spreading stinging hairs, dense in lower parts, sparser in upper parts.

丛生茎，或多分枝，60-150厘米高，直径约1厘米，向上地具小刚毛，具平展蛰毛刺，紧密在下部，稀在上半部分。